【1080P& Clear Night Vision】The Wifi doorbell is adopted an all-glass lens with HDR and distortion correction, which presents you a 1080P full HD video with 166° wider view. Equipped with an IR sensor and LED, the doorbell camera will automatically switch the light to ensure a clear image at night, it secures your home 24/7. Night vision range up to 16ft. | 【2-Way Audio& APP Fully Control】Built-in full-duplex microphone and speaker allow for clear two-way audio. You can see and talk with visitors anywhere from APP HeimLife, and the video or voice will be transferred more clearly with noise cancellation and rate adaptation technology. What's more, you could also prerecord 3 voice messages for quick response to visitors when you are inconvenient. | 【Cordless, Easy to Install 】The doorbell camera supports 100% wireless installation, it includes 2 Pcs 9600mAh rechargeable batteries, which are 50% larger capacity than other brands and provide up to 3 months stand by time for a full charge. (Please FULLY CHARGE it before using it for the first time). | 【AI Human Detection& Message Alerts】 With PIR motion and human detection enabled, instant message alerts will be pushed to your mobile device once human activity detected. The detection distance and sensitivity (low/ high) are adjustable as per your application scenes, you won't miss anything that matters and not be bothered by false alerts. | 【Optional Storage Ways& Weatherproof】 The wireless doorbell support IP65 waterproof, which secures your home day and night, snow, or shine. For video storage, it supports MicroSD (Up to 128GB, SD card Not included) and encrypted cloud storage with one-month free trial. The doorbell camera comes with a free chime(4 tones, 3 levels volume adjustable). The chime is powered by 3pcs AA batteries or Micro USB cable. (Batteries and Micro USB Cable Included).