DJI Mini Signal Expansion Device Booster Analog RF Amplifier for Phantom 1 Phantom 2 2.4GHz Video Control RC Transmitter and 2.4Ghz Wireless LANs - Black Receiving Gain: 10dB; Transmitting Gain: 11dB; Standard Antenna Gain: 6DBI Acceptable noise figure: &lt;3.0dB; Input power range: 4dBm-20dBm Peak Power: 33dBm; 2W (input power plus amplifier power); Input Voltage: 3.7-5.5V Dimensions (mm): 36(L) x 26(W) x 4.8(H) Package includes:- Antenna x 1- Booster x 1- Adapter x 1