ITEM NAME:Keyless Fingerprint Padlock USB Rechargeable Security Door Lock (Black) Product Description Description: Smart Keyless Fingerprint Padlock USB Rechargeable Zinc Alloy Anti-Theft Security Lock for Door Drawer Luggage Case Suitcase Specifications: Lock body color: Black Product material: zinc alloy Product size: lock body: 46*40*16mm/1.81*1.57*0.63" lock beam diameter: 5mm/0.20" Product net weight: about 98g Fingerprint shape: square Fingerprint area: 10.4*10.4mm/4.09*4.09" Fingerprint capacity: up to 10 LED light: three color light (red / blue / green) Battery: 3.7V lithium battery Working voltage: 3.0-4.2V Charging + emergency USB interface: Micro Low-power alarm: red light flashes 6 seconds after unlocking (can be unlocked at most 200 times after the alarm) Battery time: one year Working temperature: -10~+40 degrees Celsius Notes: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Included: 1 X Padlock.Included: 1 X Padlock. Fingerprint shape: square. Fingerprint area: 10.4 10.4mm/4.09 4.09". Fingerprint capacity: up to 10. Lock body color: Black. Product size: lock body: 46 40 16mm/1.81 1.57 0.63".