Specification: Name: Smart Wireless Video Doorbell Security Camera Infrared Intercom Doorbell Waterproof Doorbell Colour: Black Working temperature: -10-60 Viewing angle: 125 Main control processor: Broadcom/BK7252 Power input: DC5V/2A Power supply mode: 100-240v, 50-60Hz Battery used: Built-in rechargeable lithium battery Battery capacity: 800 mAh Working time: 2-4 months Night vision type: infrared night vision Storage function: cloud storage free Voice system: two-way intercom/mobile phone remote prompt viewing System support: Android 4.3 or iOS 9.0 or above Use APP: Tuya APP Music type: 20 pieces Recording distance: about 5m Waterproof grade: IP65 Gross weight of a set: 210g Package List: 1 receiver 1 transmitter 1 data cable 1 Installation accessories 1 Instruction manual 1 Roll of Double-sided Tape Hinsinc Video Doorbell Security Intercom HD Video Camera Door Bell-Wireless Smart in Black