Ultra small size, ultra light weight. The horizontal viewing angle is 150 and the oblique viewing angle is 170 40 channels combined with 5 frequency bands and 8 frequency points Sensor: 1/4inch CMOS Lens: M8 800TVL lens Angle: horizontal viewing angle 150, oblique viewing angle 170 Format: NTSC/PAL (switchable) Power consumption: 380mA @ 3.7V Voltage:3.6--5.5V Lens diameter: 2.1mm FOV150 (horizontal) video transmitter Supported video formats: NTSC/PAL Output impedance: 75 ohms Output signal strength: 23~24 dbm Output power: 25mw Wireless channel: 40ch Working voltage: 3.6v~5.5V Current:100mA Audio carrier: 6.5MHz Button function Short press (1 second): switch channels 1-8 Long press (1.5 seconds): switch frequency band A-B-E-F-R Long press (3 seconds): switch NTSC/PAL system NTSC or PAL (blue LED lights up=NTSC: blue LED does not light up=PAL) main body Weight: 3.6g Size: 18x16x16mm (excluding antenna) Different batches may result in different product appearances, printed text, and colors, which do not affect usage. Colour:Black Material:PCB Package Contents: 1 x integrated VTX camera 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.