DJI RC Aircraft Multi-rotor Helicopter Quadcopter DIY FPV 5.8GHz 8CH 2000mW 2W Wireless AV Video Transmitter Sender + RC805 Receiver with 2dBi Omnidirectional Antennas Set 5.8Ghz video / audio synchronous transmitting / receiving (compatible with PAL and NTSC) 8 working channels. DIP switch 2000mW transmitting power Working voltage (V): Receiver - DC 9-12 (3S LiPo) / Transmitter - DC 7.4-13; Working current (mA): Receiver - 1500 / Transmitter - 1500; Dimensions (mm): Receiver - 100(L) x 70(W) x 18(H) / Transmitter - 69(L) x 31(W) x 26(H); Weight (g): Receiver - 52 / Transmitter - 68.5 (including antenna) Package included: Transmitter with Antenna x 1; Receiver with Antenna x 1; Cables (NOTE: Please tighten antenna before connecting power and DO NOT remove Tx antenna, otherwise, the system may burn)