Transmitter parameters Working voltage: DC12V Working current: 400mA Transmission frequency: 1.4G/1.5G/1.6G Number of channels: 12CHS Transmitting power: 1500mW Video input/video modulation: 1vp-p (FM) Audio input/audio modulation: 1 -p(FM) Audio carrier:5.5M6.0M Weight: 82g Volume (length*width*height):73x41x14mm Theoretical transmission distance: 10-15KM Working temperature: -109℃~+509℃ Different batches may result in different product appearances, printed text, and colors, which do not affect usage. Colour:gold Material:Metal Package Contents: 1 x VTX Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.