Built-in Mic Dimensions (length*width*thickness): 50x25x15.75mm (excluding fan) Working power: 4 levels can be set, up to 2W continuously Working channel: 48CH Set parameters in multiple ways: SmartAudio, PWM, buttons Dual heat sink + air cooling With 5V/500mA output, small power supply ripple Good heat dissipation, high power, low current Input voltage range: DC7-32V Power supply has strong impact resistance. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:Red Material:plastic+Metal Package Contents: 1 x VTX 1 x FPV Antenna 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.