1、The use of four management: master card, master control card, the waiter card, guest card. 2、Mother card: same system only with one, used to configure all kinds of door card. 3、Manager card: You can open all the locks in the system. 4、The attendant card: door locks open set within the service area. 5、Be used in two modes: the set of locks, the user can choose the waiter card and individually lock or attendant card of the guest card and guest card combination lock. Features: The use of four management: master card, master control card, the waiter card, guest card. Mother card: same system only with one, used to configure all kinds of door card. Manager card: You can open all the locks in the system. Guest card: only open a door lock set. The attendant card: door locks open set within the service area. Be used in two modes: the set of locks, the user can choose the waiter card and individually lock or attendant card of the guest card and guest card combination lock. Suitable for sauna center, leisure villa, entertainment center, school, dormitory, laboratory, etc. It protects the safety of your property. Specifications: Condition: Brand New Size: Shown as Picture Optional Color: Golden, Silver Material: Zinc Alloy Optional Type: W-shaped Induction Lock, Silicone Induction lock, Button Induction lock Working Power: DC 6 V, 4 AA batteries. (Excluded) Quiescent Current: <10 microamps (μA) Dynamic Current: <150 mA (mA) Battery Life: Normal Door 20000, Low Pressure Prompt to Open the Door 200. Bolt Length: 15mm Applicable Door Thickness: 15~30mm Operating Temperature: -20 ° C to - 55 ° C Package List: 1 * Induction Head 1 * Lock Body 1 * Lock 1 * Screw Package 1 * W-shaped Bracelet Card 1 * Silicone Wristband Card 1 * Button Card 1 * Emergency USB