?Features:
Small size and lightweight.
Easy 8 channels for selection via the micro dip switches.
Wireless transmission distance up to 800 meters without any obstacles and interfering signal( Actual transmission distance depends on specific environment).
Ideal for FPV， wireless remote control aircraft， wireless remote control vehicle and so on.

Specifications:
Transmitter channel quantity: 8 channels
Output impedance: 50ohm
High Output Power: 29dBm (typical)
Antenna connector: SMA (Inside the needle)
Power supply voltage: 7-15V
Supply current: 500mA @12V
Video band width: 0~8.0MHz
Audio frequency: 6.5MHz
Video input level: 0.8~1.2Vp-p
Video input impedance: 75ohm
Audio input level: 0.5~2.0Vp-p
Audio input impedance: 10K / Ohm
Working frequency: CH1:5705， CH2:5685， CH3:5665， CH4:5645， CH5:5885， CH6:5905， CH7:5925， CH8:5945
Item size: 5.9 * 2.8 * 3.3cm / 2.4 * 1.1 * 1.3in
Item weight: 43g / 1.5oz
Package size: 16 * 5.2 * 5.0cm / 6.4 * 2.1 * 2.0in
Package weight: 106g / 3.7oz

Package List:
1 * TX51W Wireless Transmitter
1 * 2dBi Antenna
2 * AV Cable
1 * DC Cable