Features:1. When visitor press doorbell,notification will sent to your cellphone,you can answer itand enter video call interface,supports maximum share to 10 family members2. Auto capture at the same time and save image in cloud,you can review visiting records in app3. Voice change Function with a man voice at home ,children and women get safer when alone4. Easy installation paster or screw fixed,3M sticker paste or physically screw fixed two way installation5. Long time standby up to 365 days6. High Definition night vision,infrared night vision function,auto switch day/night7. 38 melodies for your options,built-in melodies,adjustable volume8. Built-in battery,Charging time is about 1.5 hours,working time is about 6 monthsNote: the item only connect with 2.4G WiFi not fit for 5G WiFi. Item Specifics:Name: Video DoorbellMaterial: ABSColor: WhiteBattery Capacity: 800 mAh Package Include:1 * Doorbell Machine1 * Indoor Ding-dong Machine1 * Charging Cable1 * Auxiliary Installation Stickers1 * ManualNOTE:App account is registered by email