Built-in 3.7V 800mAh Battery Support a key search frequency RaceBand 40 channel Auto-Searching Real-time video return 5.8G FPV Receiver It can be used as a receiver for "" and other video glasses. With interest screen function. Small size and light power consumption, Working current 360-400mA. 3.0 Inch 480x320 dot high brightness LCD screen. Built-in super sensitiveness 5.8GHz 40ch receiver, especially with RaceBand. Built-in 3.7V/800mAh high-capacity Li-ion polymer Battery. Universal USB charging interface. Real-time video return, Very low time-delay. Bilingual menu in support of Chinese and English. Support external video signal input. Support AV signal output (Connect external DVR) Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:Black Material:Plastic Package Contents: 2 * 3 Inch 5.8G FPV Drone Monitor kit 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.