Docooler&reg; 2.4G 3.5 inch TFT Wireless Video Door Phone Intercom Doorbell Home Security 1-camera 2-monitors 2.4GHz launch frequency, Approx 300 meters barrier free remote control distance, robust anti-interference. 3.5" TFT color display. 0.3Mega pixel camera. Clear night vision can capture image in low-illumination environment. Surveillance, wireless unlock, hands-free call and talk. Rain shield for the outdoor camera. 16 chord melodies for your options. Indoor monitor can take/ save/ view up to 100 pictures automatically. Monitor can hang on the wall, cabinet, or be place on the desk, table, etc. Time shows on the screen. Rechargeable lithium battery through USB cable. Wireless unlock control supports power on and power off unlock mode. Time, brightness and talk volume are adjustable. Sensitive touch key. Wide applications such as villas, apartments, office, hotels, public buildings, etc.