Main control chip: T31 : LiteOS Lens pixel: 1080P Screen specifications: 4.3 inches IPS LCD screen APP: Support Android/IOS Battery capacity: 5000Ah Wide angle: 167 degrees diagonally, 138 degrees horizontally Infrared night vision Automatic camera Monitoring intercom Motion detection Maximum support for 32G memory card Support door thickness 35-120MM Language: English/Chinese Suitable for door hole diameter 14-50MM Operating environment temperature: -10--50 Due to different batches, there may be differences in product appearance, color, and text, which will not affect the use Color: Black Material: metal+plastic Package Contents: 1 x Indoor host 1 x Outdoor handset 1 x Type-C charging cable 1 x Metal hanging plate 1 x Screw bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.