HackRF One is a Software Defined Radio (SDR) peripheral capable of transmission or reception of radio signals from 1MHz to 6GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation.
Airspy Mini - the high Performance Miniature SDR Dongle
Kit Two Sparrow Wireless Sensor Nodes and Sparrow Nest Programming Plate
This is a wireless computer keyboard with very wonderful features. It's a 2.4GHz Backlit Mini Wireless QWERTY keyboard with TouchPad and a USB interface adapter. It's perfect to be used in lectures, reports, presentation and more
HB100 Miniature Microwave Motion Sensor is an X-Band Bi-Static Doppler transceiver module. It has a built-in Dielectric Resonator Oscillator (DRO) and a pair of Microstrip patch antenna array, making it ideal for usage in motion detection equipment.
Tuner TV USB DVB-T RTL2832U + R820T (Compatible RTL-SDR - Software Defined Radio)