Usage Tips:Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! BATTERY POWERED(2 x AAA NOT INCLUDE) Using Tuya network technology to push alarm information to APP; Support on-site sound and light alarm, more than 80 decibels to intimidate intruders; Support APP selection: sound and light mode/silent mode/light mode/secret mode, etc. Material: Plastic Color: As shown Using digital optical technology to effectively prevent false alarms, omissions and non-reports; Detection distance: 6-9m Detection angle: 90 degrees; Alarm sound: more than 80 decibels; Working environment: indoor; Transmission method: WiFi transmission; Package Contents: 1 x Infrared Motion Detector 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.