Boscam FPV Wireless 5.8Ghz 8CH BOSG20 Transmitter + RC200 2" TFT FPV Watch Receiver for Gopro Hero 3/4 Camera Boscam FPV Video Transmission System: BOSG20 Transmitter + 200RC Watch 5.8GHz 32CH Wireless transmitter and receiver. Stylish Watch Receiver, 2" TFT LCD Display, New and convenient. For Gopro Hero 3 4 Camera For FPV Helicopter, Quadcopter.