M558 Wireless Smart Doorbell Welcome Home Security Alarm Door Bell With 32 Songs 4 Levels Adjustable Volume Easy Installation

Introduction: This smart wireless doorbell adopts advanced wireless transceiver technology, high-quality voice processing technology, up to 32 music, and its performance is stable and reliable. Doorbell, anti-theft, welcome multi-purpose. Suitable for home, villa, shop, hotel,and office etc. Eye-catching backlight flashes when someone pushes the doorbell. Particularly suitable for the elderly, pregnant women, and the deaf. Main Features: 1. 33 songs optional.( for doorbell button) 2. Doorbell, alarm, welcome multi-purpose. 3. Can learn up to 30 transmitters, no loss of power. 4. Support 1527/2262 code chip.(button) 5. Volume 4 adjustable.（No mute mode） 6. Support multiple doorbell transmitter, suitable for large house. Adapt to Multiple Accessories Strong signal , 150m long distance Transmission Long operating range can be up to 500ft (150m) in open space , great for large house including villas , apartment , offices , shops , warehouse , etc . Smart Wireless Doorbell When you press the button,doorbell will receive the signal and you will hear the sweet tunes immediately. 4 Levels Adjustable Volume, 33 Songs Optional 33 ringtones for your option,you can select regularly,and don't feel bored.Avoid the same ring with the neighbors. When the elderly encounter danger, they can press the doorbell Plug and Play. Easy to Use. Doorbell : 220V AC , Plug and play . Button : Fixed with double-sided tape . Built-in battery DIY Your Own Set