Features:

The product does not contain batteries！！！

Low-power WIFI video doorbell

720P, 166° wide-angle lens
Support PIR motion detection, message push mobile phone
Support Wi-Fi 2.4 GHz, IEEE 802.11b/g/n
 Support button wake-up, PIR detection wake-up, mobile phone active wake-up
two-way intercom, comes back? 9? 1 tone elimination
Support 8-32G micro sd card
Low power consumption 2 * 18650 lithium battery
 2 18650 batteries (15 wakes up every day, 15 seconds each time, can be used for 6~8 months)

Specifications:

Doorbell:

Visual Angle: 1.7mm F2.4/166°

Resolution: 720P(1280*720)/1080P(1920*1080)

Coded Format: H.264+

Battery: 2 * 18650 Lithium Battery  

Standby Time: about 6 months

PIR: support

IR: support

Night vision: support

IR distance:about 10 meters

WIFI: support 802.11 b/g/n

Mobile Phone System:for Android& IOS

Standby time:10 times auto wake-up every day,30s per time

Power supply:AC/DC 24V or 2*18650 batteries 

Wake up ways:PIR motion detection/button/smartphone

Wake up time:within 0.6 seconds

Storage:TF card,up to 32G 

Material: ABS

Color: Silver/Black

Item Size:143(L)*75(L)*28(W)mm

Item Weight:171g

Dingdong :(Optional )

Voltage: 90-250V

Power Consumption: 10mW

Working Frequency:433.92 MHz (±280KHz)

Volume Level: 4

Max Volume: 110 decibels

Working Range: 164ft/50m

Material: ABS

Quantity:1pcs

Item Size(each):8.4*8.4*4.3cm 

Item Weight(each):60g

Package Information:

Package Size: Approx.21.6*12.5*8.5cm/8.5*4.92*3.35in

Package Weight: Approx.455g/1lb

Stanard Package List:

1 * WiFi Doorbell(with 3* batteries)

1 * Bag of Installation Accessory

1 * User Manual