Features:

Very small sizeLight weight (under 4 grams without antenna)Available in 900MHz or 433MHz variantsReceiver sensitivity to -121 dBmTransmit power up to 20dBm (100mW)Transparent serial linkAir data rates up to 250kbpsRange of approx 1 mileMAVLink protocol framing and status reportingFrequency hopping spread spectrum (FHSS)Adaptive time division multiplexing (TDM)Support for LBT and AFAConfigurable duty cycleBuilt in error correcting code (can correct up to 25% data bit errors)Demonstrated range of several kilometers with a small omni antennaCan be used with a bi-directional amplifier for even more rangeOpen source firmwareAT commands for radio configurationRT commands for remote radio configurationAdaptive flow control when used with APMBased on the HopeRF HM-TRP radio module, featuring an SiLabs Si1000 RF microcontroller.

Size:Air Module: 47 × 19 × 6mm (L × W × H)USB dongle: 72 × 17 × 6mm (L × W × H)Antenna size: 106 × 9 × 9mm (L × W × H)Cable: about length 150mmPacking size: 165 * 77 * 13mm (length × width × height)

Product Weight:Air Module: 5gUSB dongle: 8gAntenna (one pair): 17g

Package Contents: Air Module 1, USB dongle 1, 2 cable 15cm long, bendable whip antenna 2