Product Information: Power supply voltage: 5 (Vus) Power supply mode: Lithium battery Type: Video doorbell Screen size: 2.8 inch TFT LCD display Lens pixel: 300W Viewing angle: 120 degree wide angle Cat’s eye head material: front ABS rear aluminum alloy Infrared night vision: 2 infrared night vision lights Doorbell function: support Door hole diameter: 14-35MM Applicable door thickness: 5-100MM color：gold Packing : Doorbell *1