1. Self-check Function of Power Supply Can Quickly Check Whether The image Transmission is Normal. 2. Frequency Locking Function, Which not Interfere With the Companion When Starting The Machine. 3. 0-2.5W Power is adjustable, Allowing you to Switch Seamlessly in Different Environments. Output Power:0-25-400-800-1500-2500mW. Input Voltage:6-36V Parameter adjustment Mode:Double Buttons/OSD Operating Current:less Than or equal to 450mA@12V, 800mW. Less Than or equal to 850mA@12V, 2500mW Output Frequency:40CH(A-B-E-F-R) Antenna Interface:MMCX Installation Hole:30.5x30.5mm. Video Format:NTSC/PAL automatic Detection Weight:12.5g (excluding antenna and Power Cord) Notes: Double-click the KEY.PW key at any time (interval-0.5s). The power setting number is directly supported to level 5 (maximum power), and the LED PW light blinks 5 times. Every time you KEY RF, the frequency band switches from A-B-E F, and the LED RF blinks . The LED RF blinks accordingly. The system automatically update the