Specification: Type: Video DoorbellColor:WhiteMaterial: ABS material, PCBA, polymer battery, speaker, camera, hardware - Battery capacity: 800m - APower input: 5V=2ACharging time: 1.5 hours - Standby time: 2 years or more - Record keeping: Three days of permanent rolling storage, 3 days unlimited - Intercom type: Colour video - Camera resolution 480*640Doorbell size L*W*H: 80*53*22Dingtone size L*W*H: 55*42*25, (including USB: 12mm height)Net weight of doorphone: 65.7g - Net weight of the ding-dong: 23.3g - Gross weight : 134.8g - Package size 100*35*145 mm Features: 1. Super long standby time.2. Built-in rechargeable battery3. Support remote video calling4. Support voice change, women’s voices into men’s voices5. Cloud storage, support playback, capture6. Convenient installation, can be glued, can be perforated7. Support up to 10 family members at the same time8. Built-in 850N night vision lights, night can also see very clearly Package Include: 1 pcs Doorbell unit1 pcs Indoor ding-dong unit1 pcs Charging cable1 pcs Auxiliary installation sticker3 pcs Small screws1 pcs Manual instruction