【Will Not Take Up Your Socket Wireless Doorbell Kit】 This unique plug-in doorbell kit is compact and beautiful, with an additional socket available for any other electrical device. Simply plug the doorbell into a wall socket and then plug your appliance into the chime unit as usual. It is the best choice for waterproof wireless doorbells in homes and any other occasions. 【Amazing Wireless Doorbell Without Battery】 Abandon traditional house doorbells. This self-powered doorbell does not require batteries. After pressing the button, it will generate electricity by itself and send a stable signal to the receiver. With this self-powered doorbell, you no longer have to worry about frequently replacing batteries. 【Memory Function And Easy Installation】Simply plug the doorbell into the socket and fix the button on the wall using the provided accessories. It will not interfere with other devices in your home or neighbors, and you will never miss any visitors. In the event of a power outage, the doorbell will remember the last melody and volume settings without having to be reset. 【Easy Adjustment Of 60 Ringtones And 5 Volume Levels】 60 CD-quality ringtones and 5 adjustable volume levels from 25dB to 85dB are suitable for people with hearing impairments and adapt to any sleep needs during the day in the home. The volume is loud enough to be heard throughout the house. The flashing light indicator is easy to notice, including for people with hearing loss. 【Ultra-long Wireless Range Up To 400 M/1300 FT】 Perfect wireless doorbell kit for homes, offices, apartments, schools, villas, warehouses, hotels, factories, hospitals, or others. You can easily select and set your favorite tunes, such as the classic "ding-dong". It has an IP65 dustproof and waterproof rating and works in temperatures ranging from -20°C to 50°C, withstanding various harsh weather conditions. It can be installed anywhere indoors, outdoors on the door frame, or in the garden. 【Effortless Memory Setup】Installs with ease and retains settings after power loss. Won't interfere with home devices and ensures you'll always hear your guests.