Smart WIFI Video Doorbell Wireless Video Color:Black and l-tryptophan

and l-tryptophan

The integrated adjustable strap is attached to the headrest or used as a shoulder strap

APP can actively wake up the device and passively monitor

which uses an LED time display function to visually check the time

Smart WIFI Video Doorbell Wireless Video Color:Black and l-tryptophanProduct information: Resolution: 1920*960 Lens: 3. 6 (mm) Signal to noise ratio>: 48 (db) Power supply voltage: 5 (V) Material: ABS Use environment: family housing villa rental house personal housing office Infrared light irradiation distance 5 meters Specifications: A: standard single machine (white), B: standard single machine (white) + Ding Dong, C: standard single machine (white) + Ding Dong + battery Packing list doorbellx1