Features1.400mah battery capacity.2.Million HD pixels collocated with 125 degree wide-angle lens3.Support mobile phone remote fast wake up device within 1 second.4.2.4G Wi-Fi connection5.High quality two-way talk with noise cancellation6.Day and night mode automatic switching, whether day or night, the image isclearly visible, for your safety and family security.7.SupportTuyaAPP.More Stable To Connect And Work.Specifications:Item model number: M3Remote Monitoring Solution Broadcom/BKLens 0328: Angle 125 degreesBattery model: 400 mAh, 2 months of permanent battery lifePower input: 5V-2AHuman body induction: optionalStorage function: TF card (maximum support 64G, not included)Voice system: two-way intercom/mobile phone remote prompt viewRecording range: 5mWireless connection: WIFI IEEE802 11b/g/n 24GHz, rf 433MHzSystem support: Android4 3 or ios9.0 or aboveUSB interface: MCRO-Mike 5P/DC5V-1AProduct size: 106*45*24mmPackage Included:1*smart doorbell1*doorbell receiver1*USB cable1*manual