- 720P HD video- Rechargeable 18650 battery powered (Not included)- 166 Degree Wide-angle camera lens- Motion-activated alerts- Real-time two-way talk and video- Wi-Fi compatible- Adjustable motion detection- IR night vision- Easy installation- Resolution: 720P (1280*720) - View Angle: 166DEG- IR LED: 6*850MM - App System: Android or iOS - Wi-Fi: 2.4G (5G Currently Not Supported) - Wifi distance: about 20 meters・ depending on the work environment and the wireless router - Recording: Device SD Card RecordingFeatureTrue Wireless & Easy Installation - No wires and cables are required・ just download the APP・ then connect it to your doorbell・ you can have access to 720P HD live video at any time from your cellphone.2.4G WI-FI connection・ compatible with iOS・ Android・ support mobile phone remote wakeup the device within 1-3 second.Smart PIR motion detection and Loop Recording - Whenever any motion is detected・ camera sends alert to your mobile phone・ the sensitive time is adjustable. It also automatically covers the expired video files・ easy to manage the monitoring records.Built-in 8G TF Card・two 18650 specification batteries (included) work regularly for 6-10 months . 5 Years Replacement Guarantee and Customer Satisfaction Service.Day and night mode automatic swithching・ whether day or night・ the image is clearly visible for your safety and family security.