Specifications: Color: Black / Green / Blue / Yellow / Cyan (Optional) Material: Zinc alloy+silica gel Unlocking mode: fingerprint + APP APP: Smart Life APP (BT,If you need to remotely control through a mobile phone, you need to match a BT gateway) Number of fingerprints that can be entered: 20 Battery capacity: 180mah rechargeable lithium battery Waterproof grade: IP65 Low battery reminder: the red light flashes when it is turned on. Display power in mobile APP Charging interface: microUSB (delivery without cable, need to bring your own)) False recognition rate: < 1/100,000 Rejection rate: < 1% The extraction time of fingerprint corresponding speed feature is < 0.25s Average matching time of single fingerprint flatness: < 0.002s Standby current: < 20uA Operating current: < 130mA Adaptive temperature: -20 - 55 Item Size: 77 * 45.5 * 21.5mm / 3.03 * 1.8 * 0.85 inch Item Weight: 97g / 3.42oz Package Size: 11.6 * 7.5 * 3.7 cm / 4.57 * 2.95 * 1.46 inch Package Weight: 172g / 6.07oz Package List: 1 * Fingerprint Lock 1 * User Manual (English)