Plug-in wireless doorbell

● Digital self-learning code, avoid interference between users and error ringing
● 25 sounds selectable, press the melody select button on the left side of chime unit
● LED flashing light indication at receiver upon receipt signal, ideal for people with hearing problem
● Insert the plug-in chime into a standard wall socket
● Waterproof transmitter
● Do not mount onto metalic surfaces, may reduce operating range
● Low power consumption, long battery life
● Easy to install, no wired required