2.8 inch LCD screen Approval certificate:CE,FCC,RoHS. Wider view angle:120 degree lens. Volume can be adjusted;32 ringttones can be selected. Using the security camera chip and security lens, 300000 pixels, much clearer image and with six IR LED, good night vision. 3 times digital zoom,you can enlarge or reduce the image. Low power consumption: 4xAA batteries support 1800 peeps and no standby power loss. Convenient installation, replacement of the battery without removing the host and cat's eye, direct open the host plane battery cover. Monitor with battery electric quantity display function ,remind the user to change a new one when battery light 1 lattice. 15S automatic shutdown, users need not worry about battery runs out quickly if forgetting shutdown. Easy operation: just press the button (image displayed immediately, video automatic switched off in 15 seconds),so convenient for children and the elderly. No shadow can be seen from outside, so as to protect privacy of the house owners. Quick start£ºjust push the button, without waiting, image displayed immediately. Resolution image: 240*RGB*320 Camera pixels: 300000 View angle: 120 degree Door thickness: 35mm-75mm Fits hole rang£º 14mm Power Supply: DC 6V 4 PCS AA batteries Power consumption: ¡Ü1.65W