Color Black Brand HJ Model 915mha Material Engineering Plastic Quantity 1 Set Compatible Model remote control aircraft Other Features Frequency: 915MHz Receive sensitivity: -121 dBm Transmit power: 20dBm(10mW) MAV Link protocol framing status documents Frequency modulation and Spread spectrum (FHSS) Self adaption to time division multiplexing Support LBT and AFA Could configure duty ratio Built-in error correcting code(up to 25% data bit error) Open source firmware AT command configure data transmission RT command remote control data transmission Work with APM self adapt to flow control Based on HM-TRP wireless module with Si1000 8051 micro controller and Si4432 wireless module Packing List 1 x Set of telemetry data transmission system (2 x 15cm-cable)