1,Color:Mint green/Black/White/Red/Pink
2,Battery:LR41 Button battery *4
3,Time: Keep ringing 30 minutes
4,LED Light : YES,LED lights flashing
5,Volumn:>120db
6,Waterproof grade: splash proof
7,Product weight :24.5g(device & battery), 40g(with packing),Paper card packaging
8,Product size:80*25*15mm/pc
9,Carton No: 400pcs/ctn , G.W:17KG/ctn, Carton size: 46*36*42cm/ctn
10,OEM/ODM avaible