The appearance and color of different batches of products may be different, which will not affect the use. Important note: This Bluetooth product is only suitable for short-range connection and cannot be used for remote connection and voice. If remote connection and voice are required, a Bluetooth gateway must be configured (not included) Description: PIR Motion Brightness sensor with USB power supply ( USB Battery together) 1. Support USB power supply 2. Support: CR123 battery, easier to buy and replace Double source power supply, no need to worry about pwoer problem ( USB power and battery can be switched seamlessly) 3. PIR Detecting Range ≤8 Meters Viewing angel 120 degree The detect brightness range 0~1000lux 4. Operating Temperature: -10℃~ 50℃ 5. Operating Humidity: Maximum 95%RH 6. Installation Height: 1.2~2.1 Meters Material: plastic colour: White Package Contents: 1 x PIR sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. PIR sensor Bluetooth PIR Detector Human Motion Sensing Detector