Smart Wireless Remote Video Doorbell Intelligent Visual Doorbell Home Intercom HD Night Vision Wifi Rechargeable Security Door Doorbell Features: High definition clear video with 65° viewing angle, display the details in front of your door, and practical WIFI connection, no wire needs, achieve a two way intercoms between the doorbell and mobile phone.Real- mobile phone, support two-way calls, photos, recording, caring for your family makes you more secure Disassembly cycle charging, built-in 800MAH lithium high-capacity battery, more than 6 months of normal use,Charging 1.5 hours Equipped infrared night vision, automatically open at night The doorbell can be controlled by APP, automatical work model, intelligent and portable.Portable in size and weight, convenient to install and Product parameters: Product Name: Visual Intelligent doorbell Material: abs, pcba, polymer battery, speaker, camera, hardware Colour: White Battery capacity: 800mah Power input: 5v = 2a Usage time: more than 6 months of normal use Charging time: 1.5 hours, Lead time: more than 1 years Record preservation: three days permanent bearing storage, unlimited times for 3 days Type of intercom: visual color Camera resolution: 480x640 Doorbell machine size: 8x5.3x2.2cm/3.15x2.08x0.86 inch Dingdong machine size:5.5x4.2x2.5cm/ 2.16x1.65x0.98 inch (including usb: 1.2cm/0.47 inch height) machine weight: 65.7g /0.14 LB Dingdong machine net weight: 23.3g /0.05 LB Package size:14.5x10x3.5cm/5.7x3.93x1.37 inch Gross weight: 135g/0.29 LB Package Includes: 1 x Doorbell Machine 1 x Internal ding-dong Machine 1 x Charging cable 1 x Adhesive installation aid 1 x Manual