Self generation wireless doorbell

KERUI M518 Self generation wireless doorbell, home smart electronic remote control long distance no battery, cordless doorbell.

• Self power age remote doorbell,integration with 52 tunes, receives propelled remote handset innovation and brilliant voice preparing innovation. The doorbell can be connected to flat, villa,shop, hotel,home, office building,meeting room.
• 52 accessible tones.
• 5 movable volume levels (counting quiet).
• Memory work (when the doorbell recipient control on, the tone remains the same with the one being set last time).
• Astonishing and bright pointer light.
• No need battery, squeeze catch and Kinetic vitality transform into electrical vitality .Save your losts of cash and batteries.