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Personne àcontacter Ms. lin
dongdu, ningbo, zhejiang
door bell is controled by magnetic parts,it have several music. for example,arabic or language music. or you can provide us te music what you want. we can design it for you each times the door open,it will sound one music,when the door open again,the second music go on,like this way,l till all music finished. one time agin to start again. and it is easily setup by sticker,each pcs have the sticker together.
