ENER-J's Rechargeable Battery Security Camera Wi-Fi, Wireless IP Camera Outdoor/Indoor, CCTV 1080P Full HD Surveillance System with Waterproof 2-Way Audio Night Vision Motion Sensor Alarm on APP Battery Powered & No Limit Installation: NOTE: The new-look Wireless Camera is an upgrade of our SHA5291 Camera. ENER-J's wireless IP camera has a 2x18650 mAh rechargeable battery, it works for up to 120 days after full charge. No need to worry about thieves cutting off the power cables. It comes with super magnetic bracket screw and double-sided adhesive tape, you can choose the best location to install. Two-Way Audio & Smart PIR Motion Detection: Built-in microphone and speaker which provides smooth and stable conversation with your family.