DC Wireless doorbell, # RL-3930
- - Battery-powered wireless door chime
- - With touch button and name panel
- - 38 pleasant chord ringtones
- - Millions of learning code and digital transmission to avoid interference effectively
- - RF: 433.92MHz ±250KHz
- - Working distance ≥150m (open area)
- - 4 Levels volume adjustable
- - Powered by 3*AA alkaline batteries (not included)
