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Color:White 5-IN-1 Function: Welcome Mode: 5 language of "Welcome", suitable for shops, stores, restaurants, supermarkets... Doorbell Mode: door open chime, 36 selectable chimes tunes for your choice.; Alarm Mode: up to 113dB alarm, effectively help to deter the intruder, wake or alert you if at home and possibly alert neighbors; Colorful Light Mode: no sound, 4 colors for your choice, suitable for quiet environment; Night Light Mode: Can be floodlight, when the magnetic sensor activated, the receiver automatically turn on the light, with 4 adjustable levels brightness Specifications: Maximum 1000 ft / 280 m operating range 5 working modes 4 volume levels LED indicators 8 chord music chip + 36 pleasant chime Batteries need: Transmitter 3* AAA Batteries;Receiver 3* AA Batteries Battery Lifespan: 5-7 months(based on 30 times perday) Transmitter power consumption: