Feature:1. Motion Sensor Alarm: The voice prompter adopts PIR body induction sensor, with high sensitivity, and the sound of 1W speaker is clear and loud.2. Recordable Voice: Support multi segment voice recording, the total time is 8 minutes, if you don't like it, you can delete the voice.3. Function: Motion sensor detector will trigger the sound remind you when someone or animals enter and move in the monitored area.4. Multi Uses: Body induction alarm can be used as entrance welcome alarm during the day, and used as antitheft detector at night.5. Battery Powered: Supports music selection and volume adjustment, and it is powered by 3pcs AAA batteries (not included), convenient and quick to replace.Specification:Item Type: PIR Motion Sensor AlarmMaterial: ABSPower Supply Mode: DC 5V 1A or 3pcs AAA batteries (can not be used at the same time)Sleep Current: 20uAPlayback Current: 130mASound Output Power: 8 Ohms 1WInduction Range: 0 to 4m / 0 to 13.12ftAlarm Sound: 75dBBattery: 3pcs AAA Batteries (Not Included).Package List:1 xPIR Motion Sensor Alarm1 x Manual2 x Hook and Loop Fasteners1 x Set of Bracket (2pcs)