The circular plastic doorbell is packaged in an absorbent card, with a doorbell and batteries inside. It features a built-in dual-tone stereo speaker with a clear sound, suitable for use in homes, restaurants, factories, and other units. The material of the circular plastic doorbell is characterized by non-aging, non-fading, and corrosion resistance. Wholesale reference prices are negotiable, with a minimum order quantity of 1 piece or more, and a packing quantity of 60 cards per piece. The circular plastic doorbell is made of high-quality industrial plastic, with a pink and white color combination. It features a wireless installation design, eliminating the trouble and costs of installation, and the precise "same frequency different code" technology, eliminating the worry of interference between users.