SMATRUL K33BB Self-powered Wireless DoorBell Waterproof Smart Home Door Bell (1 Transmitter + 1 Receiver) - US Plug

• Self-powered doorbell that requires no battery

• Wireless range up to 150 meters (in open area)

• 4 volume levels between 0 – 110 DB (can be set to mute)

• 51 ringtones to choose from

• Easily maintained and fixed

Specification:

• Receiving distance: 150M (open area)

• Volume: 4 volumes (can be muted) 0-110db

• Ring tones: 51 kinds

• Rated voltage: AC 110~ 240V ,50-60Hz 

• Transmitter size:75 x 45 x 18 mm 

• Receiver size:100 x 65 x 30mm