Wireless Doorbell, Self Powered Doorbell, No Battery Required, Wireless Door Chime, Waterproof Push Button, 150m Range with 38 Bells, 3 Volume Levels

Color: as shown Dimensions: 10 x 9 x 5 cm Weight: 150 g 【Latest Push RF Technology and Battery Free】 This wireless door chime is self-sufficient, requires no wires or batteries, is kind to the environment and saves money. When the transmitter is pressed, it generates electricity itself and sends a stable signal to the receiver. No more worrying about damaging the wall or doorbell when changing batteries! 【38 Ringtones & 3 Volume Levels】Our wireless stereo doorbell speaker delivers rich and clear sound. It offers a wide range of 38 ringtones and 3 volume levels to meet your needs. your personal taste. With the memory function, the wireless bell will remember your last settings after a power failure. The size is manual measurement, there is 1 -3 cm difference. There are some color difference between the actual color and the picture.