Feature:
1. Frequency of Doorbell is in line with the national regulations, will not produce harmful electromagnetic interference.
2. Battery take‑in and take‑out easily for outdoor machine, using 4pcs AAA batteries, and service life can up to four months, but the battery is not included.
3. The indoor machine doesn't need batteries, and it is connected with USB data cable.
4. Volume adjustable and ringtone changeable, the voice quality is clear and the speaker sound is loud.
5. Installed easily, can straightly stick doorbell to the wall with adhesive tape and less time consuming.
6. Using learning code to code, an outdoor machine support many indoor machines, non‑interference.
Specification:
Condition: Brand New
Item Type: Doorbell
Color: As Picture Shown
Material: ABS Plastic
The Outdoor Machine
Battery Model: 4pcs AAA Batteries for Power Supply (Not Included)
Working Temperature: -20-55℃
Transmission Distance: Approx. 200m/218yd of Empty Place, 5-50m/16.4-164yd of Place with Obstacles
Working Frequency: 467.6375MHZ
Working Time: Four months
Waterproof Rating: No Waterproof Function
The Indoor Machine
Voltage Range: 5V 1A
Working Temperature: -20-55℃
Transmission Distance: Approx. 200m/218yd of Empty Place, 5-50m/16.4-164yd of Place with Obstacles
Working Frequency: 467.6375MHZ
Waterproof Rating: No Waterproof Function
Package List:
1 x Indoor Machine
Note:
The outdoor machine can be used with batteries for a long time. It is better to connect the indoor machine to the power supply.