Material: Alloy Size: 6 x 2.5 x 8.8cm/2.4 x 1 x 3.5inch Low battery alarm: 3.5V LED light: three color light USB interface: Micro USB 5V 0.5A (emergency + charging) Button: Stroke detection button x 1 (built-in) Storage capacity: 10 sets of fingerprints Fingerprint setting: short press to unlock, long press 3S to set fingerprint, long press 6S to delete fingerprint Lock body material: integrated die-casting zinc alloy Lock beam material: integrated die-cast zinc alloy Lock beam diameter: 9mm Administrator fingerprint capacity: 2 sets of fingerprints Fingerprint head shape: square 10.4 x 10.4mm Technology: biometrics Lock cylinder: no mechanical lock cylinder Fingerprint sensor: Semiconductor fingerprint sensing technology 72*64 stores 10 fingerprints Waterproof rating: IP65 Feature: USB charging - 10 groups of fingerprints: the padlock supports up to 10 fingerprints recording - Use this keyless fingerprint lock to get rid of the troubles of losing keys or forgetting password - Fingerprint ID function provides a safe and private way for unlock and identity verify - Perfectly used for doors, cabinets, bikes, backpacks, storage lockers, etc Package Content: 1 x Fingerprint lock, 1 x Instruction manual, 1 x USB cable Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item.