●Smart and keyless, fingerprint to access control
●Advanced biometric technology, more responsive and sensitive
●More than 50 fingerprint can add, max 100 pcs
●Indicator ring light, audio and visual signal
●Motorized mechanism, automatically
●3XAAA alkaline battery, low-power, life time more than 1 year
●Low battery warning, Micro USB for emergency charging
●Alarm if five (5) consecutive invalid fingerprint to entry