NO BATTERIES REQUIRED
Self-powered (No need battery) more convenient for user, better for environment
OPTIONAL MUSIC
Optional music: 38 types, Adjustable volume: 4-levels.
OUTDOOR WATERPROOF
It also works on rainy day
PLUG AND PLAY
Easy installation. No wire wiring required and easy installation and setting
WIRELESS DOORBELL LONG RANGE
Long Range Wireless doorbell, signal can pass through doors, walls, floors. Remote distance is up to 300foot / 100m outdoor, 100foot / 30m indoor