1. Wireless doorbell, battery operated
2. Self-learning. user can match any bell with any push from different package
3. 100+ meters range (Unobstructed)
4. 32 polyphonic melodies
5. Volume control in 3 levels
6. LED strobe in the bell
7. Battery for push: 1×12V/A23 (included); for bell: 2×1.5V/AA
8. IP 44 waterproof push
9. Push: 93*43*21mm
Bell:148*115*33mm