Bathing places locker electronic locks, electronic locks sauna, locker key delete ☆ Consumer Card Management Card waiter even brush 5, the former waiter card is removed. Blue lights flashing "beep" sound ☆ 5 unlock, shut A. Single card unlock: 1, touch guest card, issued by the music, unlock. 2 blue lights flashing, touch management card, lights emit music, unlock. B. Dual SIM unlock: blue light flashes emit musical "beep" C. Automatic shut: When tongue indentation eight seconds later, the bolt extends automatically shut. (Please shut the lock before leaving!) Emergency power supply voltage is low when not unlock, 4.5V external battery can be plugged into the outlet box, touch the card to open the door. When ☆ undervoltage alarm when the battery voltage, and after the card lock, the green light flashes, issued a "tick ..." 8 audible alarm, indicating that the battery is about to run out of power, you should immediately replace the battery.