• Include 2 transmitters and 2 plug-in AC receivers

• Built-in 55 different chimes, 5-level volume adjustable

• Convenient switch between Chime Mode and Silent Mode

• The LED on receiver will flash without chime when in Silent Mode

• Used for home or any other places where need to welcome the guests

• Can also allow immobile or bedridden patients to call for help conveniently

• Super low power consumption, only one kilowatt-hour for a year

• Hassle free installation with double-sided adhesive tape

• IP55 waterproof, no worry about bad weather

• CE (LVD, EMC, R&TTE), RoHS certified

Specification:

• Chime quantity: 55

• Chime volume: 25-110dB (5-level)

• Working frequency: 433.92MHz±280KHz

• Working distance: 300m (open field)

• Receiver voltage: 110-260V, 50-60Hz

• Transmitter battery: 12V 23A alkaline zinc-manganese battery (included)

• Working temperature: -30ºC ~ 70ºC

• Transmitter size: 75mm x 34mm x 18.5mm (2.95in x 1.34in x 0.72in)

• Receiver size: 81mm x 81mm x 25mm (3.18in x 3.18in x 0.98in)

• Protection grade: IP55