Installation Location: Near the door handle side Since the copper makes a sound by shaking the copper ball and hitting it, you need to pay attention to the installation position to that the door has enough power to the Practical Decorations: It can be installed on refrigerator doors, classroom doors, bedroom doors, sliding doors,, simple and artistic Acoustic Bells: super long, clear and beautiful tone, moderate volume and transparent without disturbing the people Brass Glaze Sealing Process: The is brass, and the surface is and treatment is more Simple Installation: There are two high-adsorption magnets on the back of the doorbell, which can be directly attached to the refrigerator door or iron door The attached adhesive can be attached to the wooden door, which is firm and easy to clean without leaving traces, Manufacturer: Tsophreniq