... signal and image shows test, radio, television, monitoring function.Using TFT LCD display image,LED backlighting with low power consumption.Built ... electronic products.Low power consumption LED / high-resolution digital display TFT LCD .built-in 2200mAh Li-lon battery, do not need ... an external power supply, working time is about 3-4 hours,AV output and input function. with DC12V output(use ...