Wireless Self Powered Doorbell 330Ft Coverage 52 Adjustable Security Chimes
Self power generation wireless doorbell,integration with 52 songs, adopts advanced wireless transceiver technology and high-quality voice processing technology. 52 available tones. Self power generation.
Wireless Doorbell Chime Plug-In Waterproof Long Range Receiver Remote Door Bell
Doorbell : 220V AC, Plug and play. Smart Wireless Doorbell. Wireless connection. Button : Fixed with double-sided tape. Built-in battery. lug and play easy to use. Strong signal, 150m long distance Transmission.