Specification: Name: LST-S4 FPV Image Transmission Transmitter All-In-1 MachineSensor:1/4' CMOSLens: M7 Lens 700TVL lensAngle: horizontal viewing angle 120掳Format: NTSC / PAL (switchable)Power: 220mA~400mA@ 3.0v~5.0vOutput Impedance: 50 ohmsOutput Signal Strength: 13卤1dbmWireless Channel: 40chAntenna: 5.8g 3dBiPower Supply: DC 5V 卤0.5VOutput Power: Max.25mWCamera Size:11*11*11mmWeight:鈮?.8g Features: 鈼廋ompact design, extreme size and weight; 鈼廢nique split design; 鈼廤ide voltag 2.5~5.5V input (3~5V recommended); 鈼廍nter standby mode when not in use to save power; 鈼?-band 40 channels with Raceband; 鈼廟F power output: 25mW; Button function: Short press (about 1 second or less): change channels 1-8; Long press (more than 1.5 seconds): change the band A-B-E-F-R; Long press (more than 3 seconds): switch between normal mode/standby mode; LED indicator light: The blue LED is always on in normal mode and flashes in standby mode. Red LEDs 1-8 are used to indicate frequency bands and channels. *Display the band for 1 second鈫扗isplay the channel for 1 second鈫扝ide all for 1 second, cycle operation. Packaging accessories: 1 X LST-S4 FPV Camera