1:Color:Black/Silvery/Purple/Blue/Gold
2:Battery: Battery LR44 Button Battery × 3PCS
3:Time: Standby time (8-12months),Keep ringing(1.5hours)
4:LED Light : YES
6:Volumn:>130db
7:Product weight : 40g
8:Product size: 64*40*21.5mm/pc, White box : 80*55*30mm
9:Carton No: 200pcs/ctn , G.W:9.0KG/ctn, Carton size:42*32*24cm
10:OEM: Add you Logo, specific packing box