Volume Adjustable Waterproof Bell Push Wireless Doorbell

The function of a kinetic wireless doorbell is similar to that of traditional wireless doorbells, using radio frequency (RF) technology to transmit signals from the doorbell button to the receiver. However, the kinetic mechanism allows the doorbell to be self-powered, making it is a sustainable and low-maintenance option for homeowners. - This portable cordless doorbell chime is power by 3pcs 1.5V AA battery, the lifetime is 12 monthes before replace it. - Kinetic wireless doorbell transmitter, long lifetime of 20000 presses. - Operating range up to 150 metres on open air, which is applicable for villa, multi-story houses or big property.                                               - 32 sounds selectable on chime, you can pick your desired ringtongs from our door chime, including one irabic song. - It's big volume wilreless doorbell, which supports 4 level vol…