Guard Dog Security Biometric Padlock Black

YOUR FINGER IS THE KEY: Say goodbye to challenging password combinations. You can register up to 5 sets of fingerprints to share lock with your family/friend to use it. WIDE USES: Locker lock compact size to be carried anywhere you go. Suitable for both indoor and temporary outdoor use in gym, school, office, backpack, door, warehouse, cabinet, luggage, bike, and more. SMART DESIGN: Using Cutting Edge Technology makes possible to have a Smart Lock with lower power consumption and 1000 times of unlock with only one charge. STRONG ENOUGH: The lock body is made of zinc alloy material for high hardness and high compressive strength.