1、Four-way ArrowKeys, rotary jog wheel, and selectbutton. 2、SDcard slot for data and code storage. 3、SSB, AM, narrowband FM, wideband FM audio reception, with spectrum waterfall. 4、Wideband (18MHz) spectrum analysis and waterfall. 5、PM calibration for more accurate tuning. 6、Sleep mode saves power by turning off just the display. Portapack H2 is a Software Defined Radio peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Designed to enable test and development of modern and nextgeneration radio technologies, Portapack H2 is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. Features: Four-way ArrowKeys, rotary jog wheel, and selectbutton. SDcard slot for data and code storage. SSB, AM, narrowband FM, wideband FM audio reception, with spectrum waterfall. Wideband (18MHz) spectrum analysis and waterfall. PM calibration for more accurate tuning. Sleep mode saves power by turning off just the display. Specifications: Type: Set A, Set B (optional) Screen: 3.2in, 240*320 USB: 2.1 Battery: 3.7V, 2000mAh Package size: 210 * 120 * 140mm / 8.3 * 4.7 * 5.5in Package weight: Set A: 300g / 10.6ounce Set B: 800g / 1.8lb Packing List; Set A: 1 * Host 1 * 40MHz-6GHz Telescopic Antenna 1 * USB Cable Set B: 1 * Host 1 * 20dB 50MHz-6GHz LNA Board 1 * SMA Male-Male Cable 1 * 5dBi 40MHz-860MHz Antenna 1 * USB Cable 1 * 8dBi 5.4/5/5.8 GHz Antenna 1 * 40MHz-6GHz Telescopic Antenna 1 * 12dBi 700MHz-2700MHz Antenna 1 * 35dBi 700MHz-2700MHz Antenna ; Set A: 1 * Host 1 * 40MHz-6GHz Telescopic Antenna 1 * USB Cable Set B: 1 * Host 1 * 20dB 50MHz-6GHz LNA Board 1 * SMA Male-Male Cable 1 * 5dBi 40MHz-860MHz Antenna 1 * USB Cable 1 * 8dBi 5.4/5/5.8 GHz Antenna 1 * 40MHz-6GHz Telescopic Antenna 1 * 12dBi 700MHz-2700MHz Antenna 1 * 35dBi 700MHz-2700MHz Antenna