Product Name : Smart Bluetooth Padlock
Unlock method : Bluetooth or TSA key
Color : Black, white, blue, green,silver,etc
Application : secure backpack
Material : Zinc Alloy+steel
Size : 80.1*36.7*16.8mm
Battery : Rechargeable battery
Compatibility : iOS8.0+ & Android4.3+
Working time : 3 months
Weight : About 70g
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