●Digital and keyless
●Small and handy with indicator, visual and audio signal
●Programming 4-10 digit user code
●Override code available
●Motorized mechanism, automatically
●3XAAA alkaline battery, low-power, life time more than 1 year
●Low battery warning, Micro USB for emergency charging
●Alarm if three (3) consecutive invalid password to entry
●Blue tooth and APP function available
