Wired Doorbell, Portable Mechanical Welcome Door Bell,Mechanical Doorbell Ding Wall Mounted Dong Bell Chime for Hotel Access Control System(220V)

【Safe and Durable】Made of flame retardant ABS shell, streamlined design, practical and Mechanical doorbell design for use with most doorbell switches. 【Portable】Compact size, light weight, wall installation is simple and convenient. 【Loud and penetrating sound】With 85-90dB doorbell chime, easy to hear when someone presses the doorbell to access it. 【Esay to use】 Installation is simple and convenient, no batteries are installed and the @@@48BKZvK80auIf5adyY5QM9dCm+wqfTkv@@@ is directly connected. 【After-sales Service】 The after-sales service of this product is provided by Sutinna.If there are any problems in use or unsatisfactory with our products, please feel free to contact us, our professional customer service team will consult the problems sincerely. Thank you for buying from us., Weight: 0.604507522404 Pounds, Manufacturer: Lazmin112