Your finger is your key,and only takes 1 sec to unlock. Keyless Smart Fingerprint Padlock is equipped with advanced fingerprint technology with automatic recognition,safety,and convenience. No more carrying a key with you,and no more missing the combination when youre turning the lock turndial.With one full charge,the electronic smart lock can stand by for 2 years without recharging and unlocks up to 2500 times. All due to the locks low power consumption and long standby time.If the battery is out of power,simply connect to a charger,and it can be unlocked by the recorded fingerprint.Specifications:Smart fingerprint padlock supports 360 degree angel fingerprint recognition.Resolution: 508DPIESD: +/-12kV air,+/-8kV contactFRR: <1%FAR: <0.002%Recognize time: <300mSWorking current: 180MABattery: 300MAH lithium polymer batteryStandby time: 2 yearsUnlock times: up to 2500