Description:Product Name: DoorbellMaterial: ABSColor: BlackAPP: Broadcom/TuyaVideo resolution: 640 x 480Power: 5V-2A;Main functions: simple installation without wiring, APP remote dialogue, two-way voice intercom, infrared night vision, remote capture voice system two-way intercom / mobile phone remote prompt viewPick up distance: 5mStorage: cloudBattery: AAA battery (not included)Night vision device type: infrared night vision deviceUSB interface: TP-C/DC5V-1ADoorbell size: about 89 x 50 x 26mm/3.50 x 1.97 x 1.02 inchesDingdong vegetable shopping machine size: about 49 x 46 x 27mm/1.93 x 1.81 x 1.06 inchesPacking list:1 x smart doorbell1 x Dingdong machine1 x USB cable1 x instruction manual1 x packing boxNote:1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding.2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.