... transmission, small volume, capacity with lightning-proof and anti-jamming.Specification:Item 300A1600A1,5001B,600A4,600A8, ... video transmitter receiverNA600A16: 16 channels wireless 600m video transmitter receiverNA5004B: 4 channels 2500m video transmitter receiver(with power)NA5008B: 8 channels 2500m video transmitter receiver(with power) wireless long range 300m video transmitter receiver ...