1,Color:Black/White/Blue/Pink
2,Battery: 150mah lithium battery, USB port can be recycled charging battery cycle life more than 600 times
3,Time: Keep ringing 1.5 hours
4,LED Light : YES, Lighting time is about 120 minutes
5,Volumn:>130db
6,Product weight :29g(device & battery), 44g(with packing)
7,Product size: 83*28*17mm/pc, Packing box: 90*48*18mm
8,Carton No: 300pcs/ctn , G.W:14.0KG/ctn, Carton size: 40*30*27cm/ctn
9,OEM: Add you Logo, specific packing box