4 in 1 Wireless Door Bell Doorbell with Blue LED Indicator
- Size-Receiver:105*66*21mm;Transmitter: 70*40*16mm
- Working voltage: 3.2V~5.5V
- Push button battery: 23A 12V (included)
- Chime batteries: 3 x AA 1.5V (included)
- Range: up to 150m (open space)
- Number of melody: 36
- Frequency: 433MHzl
- 1x Transmitter+1 x Receiver
- 4x Anchors
- 4x Screws
- 2x Double-side Adhesive Tapes (1 for transmitter, 1
- Four functions: Wireless Doorbell/Security Burglar Alarm/Motion Sensor Light/Emergency Flashlight
- Wireless Doorbell: Built-in 36 ring tones with high-quality 16bit sound
- Security Burglar Alarm: Send out alarm at a 2-5meter induction range with super horn, loud enough, which can scare off burglars.
- Self-learning Code System: One step to change the chime or adjust the volume.
- Maintain the same excellent performance at humid environment.
- Volume: 3 levels adjustable up to 120dB