Features: brand new and high quality Wireless connection, ultra-low power, remote active wake up, quick start. APP remote dialogue, two-way voice intercom, millions of high-definition, infrared night for vision, remote capture. Motion detection recording, doorbell button trigger recording, manual recording. Doorbell button wakes up, PIR human body detects awakening. It can be connected to WIFI, even if it is connected outdoors or through several walls, the transmission is reliable and the signal is strong. Video conversation, you can talk to visitors any for time, anywhere, through noise reduction and rate adaptation technology, you can transmit video and voice more clearly. Installation is simple, no wiring is required, remote viewing any for time and anywhere, normal movement alarm, APP real-time reminder. Specifications: Sensor (sensor) 1080p GC2053 CMOS sensor Lens 120° wide-angle lens Sensor performance: Support automatic white balance, automatic gain control, automatic backlight compensation Automatic switching of dual filters, 6pcs 850nmΦ28Mil high-power infrared lamps The best night for vision distance is 3 meters, and the farthest distance is 20 meters. Motion detection:PIR motion detection, the sensitivity can be adjusted to detect the distance The best 2 meters, the farthest 4 meters Recording method 1. Motion detection recording; 2. Press for key to trigger recording; 3. Preview recording Working voltage: 3.7V 18650 lithium battery Working current: Start working current 260mA (milliamps), sleep standby current 1.7mA (microamps) USB charging voltage: for DC 5V / 1.5A Material:Plastic Size:Approx.4.5x0.5x14.1cm/1.77x0.2x5.55inches Color:Black+White Package Includes: 1x WiFi Wireless for Smart Doorbell Camera note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.