wireless doorbell, remote distance
**0m,
*2melodies for choice.
DC and AC item.
Wireless doorbell 1)
Popular streamlined design, wireless for instant
operation
2) Digital item:Different codes on same frequency"technology, the
error rate is less than 1/**0, **0
3) *2 kinds of melogy
4) Advanced touch button can be pushed more than **0, **0times
5) Operating range is up to **0 meters on open air
6) Suitable Volume regulation
7) Waterproof technique
8) Signature card function
