Intelligent Infrared Sensor Recordable Doorbell Welcome Voice Prompt Loudspeaker, N911P

1. Material: ABS
2. Power supply: DC 5V, 3 x AAA batteries (not included in shipment)
3. Volume: 3-speed adjustable
4. Recording: repeatable recording about 20 seconds, induction playback twice
5. Sensing distance: 3-6 meters (affected by ambient temperature)
6. Sensing range: up and down 60 degrees, left and right 110 degrees
7. Working temperature: -25-55 degrees celsius
8. According to different scenes and time periods, set up different working modes: daytime welcome tips; night burglar alarms
9. Waterproof grade: not waterproof
10. Size: 32 x 55 x 83mm