Technical Specification Video Resolution 1080P Working Network 2.4Ghz Application Name Tuya Smart Wide Angle Lens 150° Degrees Using Time 3 hours Charging Time 4 hours Power Supply Cable DC Power or Rechargeable Battery Feature APP Remote Connection, Motion Detection, Night Vision, etc Installation Steps Rotate the smoke hidden camera counterclockwise, take out the chassis, then fix the chassis to the ceiling or wall with a spiral knife, and then turn clockwise to install the product back. Easy To Install This product has nails for installation, which is very easy to install. Warm Tips: 1. The smoke detector camera need to connect to router 2.4Ghz WIFI. 2. Pls format the SD card before first use. 3. Pls charge the hidden camera for 4 hours before using to get enough power. 4. We suggest that charging while recording, so that it will not go offline due to lack of power.