This doorbell uses kinetic energy. No need to worry about batteries.
1. Memory function
2. Self-learning code function
3. Self-powered doorbell that requires no battery
4. Receiving distance: 150 M (in open area)
5. Volume: 4 files 25-110DB, ringtones: 58 pcs
6. Rated voltage: AC 110~ 240V ,50-60Hz
7. Working frequency: 433MHz.
8. Receiver standby power:< 0.5W
9. Modes: Sound only, flash only, sound & flash, sound & light on
- Sound only
- Flash only
- Sound & flash
- Sound & light on