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wireless 3 in 1 multifunctional stereo bluetooth headphone earphone headset with mic mp3 player fm radio for tablet pc silver



(YA) Проигрыватель (винил,AM/FM Radio,CD,CD mp3,USB,Aux in) (YA) Проигрыватель (винил,AM/FM Radio,CD,CD mp3,USB,Aux in) Новинка

(YA) Проигрыватель (винил,AM/FM Radio,CD,CD mp3,USB,Aux in)

(YA) Проигрыватель (винил,AM/FM Radio,CD,CD mp3,USB,Aux in)
(YA) Проигрыватель (винил/USB/SD Card/FM Radio/Bluetooth/Aux in/Line out) (YA) Проигрыватель (винил/USB/SD Card/FM Radio/Bluetooth/Aux in/Line out) Новинка

(YA) Проигрыватель (винил/USB/SD Card/FM Radio/Bluetooth/Aux in/Line out)

(YA) Проигрыватель (винил/USB/SD Card/FM Radio/Bluetooth/Aux in/Line out)
Радио Bosch GPB 12V-10 без аккумулятора и з/у (0.601.429.200) Радио Bosch GPB 12V-10 без аккумулятора и з/у (0.601.429.200) Новинка

Радио Bosch GPB 12V-10 без аккумулятора и з/у (0.601.429.200)

Мощный звук для прослушивания Fm / Am и Mp3-файлов Подключение внешних проигрывателей музыки через Aux-In 10 радиостанций (5 и 5 Fm Am) Практичный отсек для хранения адаптера питания и Aux-In кабеля Гибкая регулировка низких / высоких частот; 2 х 5 Вт динамики для стерео звука Полностью функциональный после падения с высоты 1 м Am / Fm Stereo Radio 12-вольтовая розетка Aux вход Поставляется без зарядного устройства и аккумулятора
Christoffer Andersson GPRS and 3G Wireless Applications. Professional Developer's Guide Christoffer Andersson GPRS and 3G Wireless Applications. Professional Developer's Guide Новинка

Christoffer Andersson GPRS and 3G Wireless Applications. Professional Developer's Guide

To ensure competitive advantage for their companies in wireless product development, developers need to understand how wireless technologies work, what impact they have on applications being developed, and how to use them to optimize products for success in the marketplace. Designed to answer these and other wireless development questions, this unique handbook explores how a host of relevant technologies work together with the new worldwide standards for wireless technologies–General Packet Radio Service (GPRS) and Third Generation (3G). Leading expert Christoffer Andersson clearly explains how GPRS and 3G control the mobile environment, then goes on to describe how the emerging radio technology of Bluetooth fits in with WAP and Java, how wireless applications work with HTTP and TCP/IP on the Internet, and how to create «always-on» wireless applications.
Ritmix FMT-A775, Black FM-модулятор Ritmix FMT-A775, Black FM-модулятор Новинка

Ritmix FMT-A775, Black FM-модулятор

Ritmix FMT-A775 – это устройство "2 в 1", объединяющее Bluetooth FM-трансмиттер с автомобильной USB-зарядкой 5В 2,1 А. Подходит для любого устройства, имеющего возможность зарядки от USB, будь то плеер, смартфон, планшет или навигатор. FM-трансмиттер предназначен для передачи аудиокомпозиций на автомобильный FM-приёмник через Bluetooth-соединение, с карты MicroSD, через USB или с подключенного через линейный вход внешнего устройства (плеера, телефона, смартфона, планшета). Характеристики: Форматы аудио MP3 Шаг поиска канала 0,1 МГц Количество запоминаемых каналов 206 Диапазон радиочастот M 87,5 - 108 МГц Интерфейс передачи данных Bluetooth, USB 2.0, AUX-in, MicroSD Рекомендуем!
Lim Eng Hock Compact Multifunctional Antennas for Wireless Systems Lim Eng Hock Compact Multifunctional Antennas for Wireless Systems Новинка

Lim Eng Hock Compact Multifunctional Antennas for Wireless Systems

Offers an up-to-date description of modern multifunctional antenna systems and microwave components Compact multifunctional antennas are of great interest in the field of antennas and wireless communication systems, but there are few, if any, books available that fully explore the multifunctional concept. Divided into six chapters, Compact Multifunctional Antennas for Wireless Systems encompasses both the active and passive multifunctional antennas and components for microwave systems. It provides a systematic, valuable reference for antenna/microwave researchers and designers. Beginning with such novel passive components as antenna filters, antenna packaging covers, and balun filters, the book discusses various miniaturization techniques for the multifunctional antenna systems. In addition to amplifying and oscillating antennas, the book also covers design considerations for frequency- and pattern-reconfigurable antennas. The last chapter is dedicated to the field of solar cell integrated antennas. Inside, readers will find comprehensive chapters on: Compact Multifunctional Antennas in Microwave Wireless Systems Multifunctional Passive Integrated Antennas and Components Reconfigurable Antennas Receiving Amplifying Antennas Oscillating Antennas Solar cell integrated Antennas Aimed at professional engineers and researchers designing compact antennas for wireless applications, Compact Multifunctional Antennas for Wireless Systems will prove to be an invaluable tool.
(YA) Радио (AM/FM, USB/SD Card, Bluetooth, AUX IN ) (YA) Радио (AM/FM, USB/SD Card, Bluetooth, AUX IN ) Новинка

(YA) Радио (AM/FM, USB/SD Card, Bluetooth, AUX IN )

(YA) Радио (AM/FM, USB/SD Card, Bluetooth, AUX IN )
Zilmer Электромобиль Спорткар-9920, р/у, mp3, FM, USB, SD, свет, звук, Zilmer Zilmer Электромобиль Спорткар-9920, р/у, mp3, FM, USB, SD, свет, звук, Zilmer Новинка

Zilmer Электромобиль Спорткар-9920, р/у, mp3, FM, USB, SD, свет, звук, Zilmer

Электромобиль с дистанционным управлением, функциональный руль, поддержка MP3, FM радио, SD карты, USB разъем. Двери на электроприводе (с возможностью открывания с пульта д/у), кнопка старт/стоп, 3 скорости, свет/звук, индикатор батареи. Возможность переноса при помощи выдвижного механизма. (1*12V/7Ah)
Daniel Chew The Wireless Internet of Things. A Guide to the Lower Layers Daniel Chew The Wireless Internet of Things. A Guide to the Lower Layers Новинка

Daniel Chew The Wireless Internet of Things. A Guide to the Lower Layers

Provides a detailed analysis of the standards and technologies enabling applications for the wireless Internet of Things The Wireless Internet of Things: A Guide to the Lower Layers presents a practitioner’s perspective toward the Internet of Things (IoT) focusing on over-the-air interfaces used by applications such as home automation, sensor networks, smart grid, and healthcare. The author—a noted expert in the field—examines IoT as a protocol-stack detailing the physical layer of the wireless links, as both a radio and a modem, and the media access control (MAC) that enables communication in congested bands. Focusing on low-power wireless personal area networks (WPANs) the text outlines the physical and MAC layer standards used by ZigBee, Bluetooth LE, Z-Wave, and Thread. The text deconstructs these standards and provides background including relevant communication theory, modulation schemes, and access methods. The author includes a discussion on Wi-Fi and gateways, and explores their role in IoT. He introduces radio topologies used in software-defined radio implementations for the WPANs. The book also discusses channel modelling and link budget analysis for WPANs in IoT. This important text: Introduces IEEE 802.15.4, ITU-T G.9959, and Bluetooth LE as physical layer technology standards enabling wireless IoT Takes a layered approach in order to cultivate an appreciation for the various standards that enable interoperability Provides clarity on wireless standards with particular focus on actual implementation Written for IoT application and platform developers as well as digital signal processing, network, and wireless communication engineers; The Wireless Internet of Things: A Guide to the Lower Layersoffers an inclusive overview of the complex field of wireless IoT, exploring its beneficial applications that are proliferating in a variety of industries.
Портативная беспроводная колонка Bluetooth, microSD, AUX, FM, мощн. 3 Вт, карабин (уп.1/100шт.) Портативная беспроводная колонка Bluetooth, microSD, AUX, FM, мощн. 3 Вт, карабин (уп.1/100шт.) Новинка

Портативная беспроводная колонка Bluetooth, microSD, AUX, FM, мощн. 3 Вт, карабин (уп.1/100шт.)

Портативная беспроводная колонка Bluetooth, microSD, AUX, FM, мощн. 3 Вт, карабин (уп.1/100шт.)
John Pahl Interference Analysis. Modelling Radio Systems for Spectrum Management John Pahl Interference Analysis. Modelling Radio Systems for Spectrum Management Новинка

John Pahl Interference Analysis. Modelling Radio Systems for Spectrum Management

10439.27 руб. Найти похожее
The book describes how interference can be managed so that radio systems co-exist, without harmful mutual effects, within a finite amount of spectrum. This is timely in view of the increasing proliferation of wireless systems. It covers both the processes, such as regional or international coordination, as well as the engineering principles. Written by an author with extensive experience in the industry, it describes in detail the main methodologies for calculating or computing the interference between radio systems of the same type, and also between radio systems of different types
Schritte plus 3: Niveau A2/1: Arbeitsbuch (аудиокурс CD) Schritte plus 3: Niveau A2/1: Arbeitsbuch (аудиокурс CD) Новинка

Schritte plus 3: Niveau A2/1: Arbeitsbuch (аудиокурс CD)

Die CDs enthalten alle Hortexte des Arbeitsbuch und interactive Ubungen fur den PC/Mac. Die Hortexte konnen Sie auf jedem CD-Player abhoren. Wenn Sie sie in Ihrem Comruter horen wollen, mussen Sie dazu den CD-Player in Ihrem Comruter starten. Um die interaktiven Ubungen zu starten, legen Sie die CD in in Ihren PC ein unddoppelklikken auf "starten.htm". Wahlen Sie dann "Interaktive Ubungen".
Беспроводная колонка Harper PS-012, Silver Беспроводная колонка Harper PS-012, Silver Новинка

Беспроводная колонка Harper PS-012, Silver

Корпус из алюминиевого сплава; Частотный диапазон: 120 - 16000 Гц; Максимальная выходная мощность: 3 Вт; Время работы: до 3 часов; Емкость аккумулятора: 1000 мАч; Версия Bluetooth 3.0; Максимальная дальность работы: до 10 метров; Зарядное напряжение: micro USB, 5B; FM радио; Встроенный микрофон; Поддержка музыкальных файлов MP3, WMA, WAV; Вес: 210 гр; Размеры: 60х60х50 мм
Amraoui Asma Radio Resource Allocation and Dynamic Spectrum Access Amraoui Asma Radio Resource Allocation and Dynamic Spectrum Access Новинка

Amraoui Asma Radio Resource Allocation and Dynamic Spectrum Access

We are currently witnessing an increase in telecommunications norms and standards given the recent advances in this field. The increasing number of normalized standards paves the way for an increase in the range of services available for each consumer. Moreover, the majority of available radio frequencies have already been allocated. This explains the emergence of cognitive radio (CR) – the sharing of the spectrum between a primary user and a secondary user. In this book, we will present the state of the art of the different techniques for spectrum access using cooperation and competition to solve the problem of spectrum allocation and ensure better management of radio resources in a radio cognitive context. The different aspects of research explored up until now on the applications of multi-agent systems (MAS) in the field of cognitive radio are analyzed in this book. The first chapter begins with an insight into wireless networks and mobiles, with special focus on the IEEE 802.22 norm, which is a norm dedicated to CR. Chapter 2 goes into detail about CR, which is a technical field at the boundary between telecommunications and Artificial Intelligence (AI). In Chapter 3, the concept of the “agent” from AI is expanded to MAS and associated applications. Finally, Chapter 4 establishes an overview of the use of AI techniques, in particular MAS, for its allocation of radio resources and dynamic access to the spectrum in CR. Contents 1. Wireless and Mobile Networks. 2. Cognitive Radio. 3. Multi-agent Systems. 4. Dynamic Spectrum Access. About the Authors Badr Benmammar has been Associate Professor at UABT (University Abou Bekr Belkaïd Tlemcen), Algeria since 2010 and was a research fellow at CNRS LaBRI Laboratory of the University of Bordeaux 1 until 2007. He is currently carrying out research at the Laboratory of Telecommunications of Tlemcen (LTT), UABT, Algeria. His main research activities concern the cognitive radio network, Quality of Service on mobile and wireless networks, end-to-end signaling protocols and agent technology. His work on Quality of Service has led to many publications in journals and conference proceedings. Asma Amraoui is currently a PhD candidate; she is preparing a doctoral thesis on a topic of research that explores the use of artificial intelligence techniques in cognitive radio networks. She is attached to the Laboratory of Telecommunications of Tlemcen (LTT) in Algeria.
Prasad Ramjee Cognitive Radio Networks Prasad Ramjee Cognitive Radio Networks Новинка

Prasad Ramjee Cognitive Radio Networks

Giving a basic overview of the technologies supporting cognitive radio this introductory-level text follows a logical approach, starting with the physical layer and concluding with applications and general issues. It provides a background to advances in the field of cognitive radios and a new exploration of how these radios can work together as a network. Cognitive Radio Networks starts with an introduction to the fundamentals of wireless communications, introducing technologies such as OFDM & MIMO. It moves onto cover software defined radio and explores and contrasts wireless, cooperative and cognitive networks and communications. Spectrum sensing, medium access control and network layer design are examined before the book concludes by covering the topics of trusted cognitive radio networks and spectrum management. Unique in providing a brief but clear tutorial and reference to cognitive radio networks this book is a single reference, written at the appropriate level for newcomers as well as providing an encompassing text for those with more knowledge of the subject. One of the first books to provide a systematic description of cognitive radio networks Provides pervasive background knowledge including both wireless communications and wireless networks Written by leading experts in the field Full network stack investigation
Наушники Mi In-Ear Headphone Pro HD Silver Наушники Mi In-Ear Headphone Pro HD Silver Новинка

Наушники Mi In-Ear Headphone Pro HD Silver

Mi In-Ear Headphone Pro HD - легкие и технологичные наушники Xiaomi. Продолжая линейку компактных наушников Сяоми делают следующий шаг к достижению вершин звуковоспроизведения. Наслаждайтесь качеством любимой музыки на новом уровне!
Sana Salous Radio Propagation Measurement and Channel Modelling Sana Salous Radio Propagation Measurement and Channel Modelling Новинка

Sana Salous Radio Propagation Measurement and Channel Modelling

10321.24 руб. Найти похожее
While there are numerous books describing modern wireless communication systems that contain overviews of radio propagation and radio channel modelling, there are none that contain detailed information on the design, implementation and calibration of radio channel measurement equipment, the planning of experiments and the in depth analysis of measured data. The book would begin with an explanation of the fundamentals of radio wave propagation and progress through a series of topics, including the measurement of radio channel characteristics, radio channel sounders, measurement strategies, data analysis techniques and radio channel modelling. Application of results for the prediction of achievable digital link performance would be discussed with examples pertinent to single carrier, multi-carrier and spread spectrum radio links. This work would address specifics of communications in various different frequency bands for both long range and short range fixed and mobile radio links.
Наушники Mi In-Ear Headphone Pro Silver Наушники Mi In-Ear Headphone Pro Silver Новинка

Наушники Mi In-Ear Headphone Pro Silver

Mi In-Ear Headphone Pro - одни из самых высокотехнологичных и качественных наушников Xiaomi. Вас поразят басы и порадует возможность использования их как гарнитуры. А легкий корпус из высококачественного металла придает им комфорт в обращении и современный стиль.
Simon Haykin Fundamentals of Cognitive Radio Simon Haykin Fundamentals of Cognitive Radio Новинка

Simon Haykin Fundamentals of Cognitive Radio

A comprehensive treatment of cognitive radio networks and the specialized techniques used to improve wireless communications The human brain, as exemplified by cognitive radar, cognitive radio, and cognitive computing, inspires the field of Cognitive Dynamic Systems. In particular, cognitive radio is growing at an exponential rate. Fundamentals of Cognitive Radio details different aspects of the human brain and provides examples of how it can be mimicked by cognitive dynamic systems. The text offers a communication-theoretic background, including information on resource allocation in wireless networks and the concept of robustness. The authors provide a thorough mathematical background with data on game theory, variational inequalities, and projected dynamic systems. They then delve more deeply into resource allocation in cognitive radio networks. The text investigates the dynamics of cognitive radio networks from the perspectives of information theory, optimization, and control theory. It also provides a vision for the new world of wireless communications by integration of cellular and cognitive radio networks. This groundbreaking book: Shows how wireless communication systems increasingly use cognition to enhance their networks Explores how cognitive radio networks can be viewed as spectrum supply chain networks Derives analytic models for two complementary regimes for spectrum sharing (open-access and market-driven) to study both equilibrium and disequilibrium behaviors of networks Studies cognitive heterogeneous networks with emphasis on economic provisioning for resource sharing Introduces a framework that addresses the issue of spectrum sharing across licensed and unlicensed bands aimed for Pareto optimality Written for students of cognition, communication engineers, telecommunications professionals, and others, Fundamentals of Cognitive Radio offers a new generation of ideas and provides a fresh way of thinking about cognitive techniques in order to improve radio networks.
Jiang Liping HSK Standard Course 3. Workbook + CD / Стандартный курс подготовки к HSK. Уровень 3. Рабочая тетрадь + MP3 CD Jiang Liping HSK Standard Course 3. Workbook + CD / Стандартный курс подготовки к HSK. Уровень 3. Рабочая тетрадь + MP3 CD Новинка

Jiang Liping HSK Standard Course 3. Workbook + CD / Стандартный курс подготовки к HSK. Уровень 3. Рабочая тетрадь + MP3 CD

This is the workbook of HSK Standard Course 3, including exercises for each of the 20 lessons in the textbook, one HSK Level 3 model test, and an introduction to the HSK Level 3 test. This book can help students succeed in the HSK Level 3 test and all-roundly improve their Chinese competence and proficiency. The workbook is illustrated with plenty of photos matching the style of the test. An MP3 CD comes with the book.

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We are currently witnessing an increase in telecommunications norms and standards given the recent advances in this field. The increasing number of normalized standards paves the way for an increase in the range of services available for each consumer. Moreover, the majority of available radio frequencies have already been allocated. This explains the emergence of cognitive radio (CR) – the sharing of the spectrum between a primary user and a secondary user. In this book, we will present the state of the art of the different techniques for spectrum access using cooperation and competition to solve the problem of spectrum allocation and ensure better management of radio resources in a radio cognitive context. The different aspects of research explored up until now on the applications of multi-agent systems (MAS) in the field of cognitive radio are analyzed in this book. The first chapter begins with an insight into wireless networks and mobiles, with special focus on the IEEE 802.22 norm, which is a norm dedicated to CR. Chapter 2 goes into detail about CR, which is a technical field at the boundary between telecommunications and Artificial Intelligence (AI). In Chapter 3, the concept of the “agent” from AI is expanded to MAS and associated applications. Finally, Chapter 4 establishes an overview of the use of AI techniques, in particular MAS, for its allocation of radio resources and dynamic access to the spectrum in CR. Contents 1. Wireless and Mobile Networks. 2. Cognitive Radio. 3. Multi-agent Systems. 4. Dynamic Spectrum Access. About the Authors Badr Benmammar has been Associate Professor at UABT (University Abou Bekr Belkaïd Tlemcen), Algeria since 2010 and was a research fellow at CNRS LaBRI Laboratory of the University of Bordeaux 1 until 2007. He is currently carrying out research at the Laboratory of Telecommunications of Tlemcen (LTT), UABT, Algeria. His main research activities concern the cognitive radio network, Quality of Service on mobile and wireless networks, end-to-end signaling protocols and agent technology. His work on Quality of Service has led to many publications in journals and conference proceedings. Asma Amraoui is currently a PhD candidate; she is preparing a doctoral thesis on a topic of research that explores the use of artificial intelligence techniques in cognitive radio networks. She is attached to the Laboratory of Telecommunications of Tlemcen (LTT) in Algeria.
Продажа wireless 3 in 1 multifunctional stereo bluetooth headphone earphone headset with mic mp3 player fm radio for tablet pc silver лучших цены всего мира
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