SOUND LIGHT ALARM & APP ALERTS: Wifi motion sensor alarm , "Tuya Smart"/"Smart Life" APP control, No hub required. When it detects any movement, the wifi motion sensor activate 100dB sound, and it send you an alert through App at the same time. FOUR ARMING MODES & ACCURATE ALARM: The wireless motion detector has 4 modes(Sound and light/silent/no light/secret mode); According to your , choose your favorite arming mode. Motion detectors provides an added level of security and to your property. And because of the , it can prevent false alarms or under report from pets under 25KG. TIMING DISARMING AND ARMING: Wifi PIR motion detector alarm features a 90detection and 360flip design, the detection range up to 6-9meter. It also has the timing function, You can set the time according to your needs, DIY your home security systems. EASY INSTALLATION & TWO CHARGING METHODS: The wifi smart motion sensor support multiple installation methods such as flat placement and wall fixing. The motion sensor alarm indoor is powered by 2xAAA battery(not included) or USB cable (included).Note: If the alarm is triggered frequently in your installation place, the battery run out quickly, so we recommend to use the 5V usb adapter to supply power. Pls Note:The battery can only be used as a backup and can only be used for 8 hours. Colour:White Material:plastic Package Contents: 1 x wireless infrared alarm detector (does not include 2xAAA batteries, you need to prepare them yourself) 1 x USB cable 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.