5.8G 25/100MW VTX mini Audio & Video Transmitter

5.8G 25/100MW VTX mini Audio & Video Transmitter Specification: Package Included: 1x 5.8G 25/100MW mini Audio & Video Transmitter25/100mW VTX manual: 25/100mW VTX manual (1150 downloads) How to change the power to 100mW？