Feature: 1Two Unlock Mode: Single-key Mode, Dual-key Mode. 2Can be used with 4 x AAA 15V alkaline batteries or a USB adapter. The batteries can last 8 months under normal use. 3The sound alarm will alert when the voltage is low. When the batteries become too weak to operate, the door will open automatically4Installation Template, Double Stick Tape and User Manual are provided in the kit. Operation Instructions in Single Unlock Mode 1Initialization: After installing the battery, hold on the RESET button (passing a small hard object through the hole in the front of the lock cylinder to press the reset button). When you hear a "Di" sounds, release the hand. The lock beeps: "Di, Di, Di, Di, Di" (five short beeps). At this point, the lock is initialized (clear lock record) state, in Single Mode. 2Set Master Card: After initializing, the first card (RFID Card / Tag) is swiped in the sensing area of the lock body. After a sound ("Di-Di") is made, the card becomes a Master Card. Master card can be used to unlock the cabinet door, add or delete the user card. 3Set User Card: Swipe the management card (After reading successfully, the lock beeps "Di", in an unlocked state, new user card can be configured), put new card on the sensing area untill you hear a short beep which means the setting is successful. The user card can be setted continuously (up to 11 pcs). 4Operation instructions in Dual Unlock Mode is available in User Manual. ONE KEY FOR MULTIPLE LOCKS - This RFID locks are programmable, and you can use one key (RFID card/fob) to unlock several cabinet locks as you want. The only thing you need to do: program the key into the locks and test it before installation. SUITABLE FOR WOODEN CABINETS - RFID cards can penetrate through thicker wood panels (up to 38mm/15 inch) and the key-fobs are basically convenience items with slightlyless , for making duplicate keys. Fits doors up to 0 -12 inch thick, Perfect of cabinets, lock, cupboards, carts, data racks, boxes, safes. COMPACT SIZE & STURDY MECHANISM - Latch and mortise are made by metal, they are sturdy enough for the cabinets. Unlock the cabinet door without touching. RFID card / tags are portable and easy to store. Provides good safety protection of your personal items. Improve children's safety at home, avoid your kids free to open the drawers or cabinet doors. LOW ALARM & AUTO-UNLOCK - Once the lock has been setup and programmed, it will indicate as needed low-battery status with a long beep after being openedAfter the long beep, the lock can be used approximately 15 times. When the batteries become too weak to operate, the door will open automatically, at which point the batteries must be replaced before the lock can be used again. DIY KIT FOR YOU - Installation Template, Double Stick Tape and User Manual are provided in the kit. This lock can be used with a USB adapter instead of alkaline batteries. Colour: Black Material: ABS + metal Package Contents: 1 * Cabinet Lock 1 * Screw bag 1 * Lock 2 * IC Card 2 * Keytag Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.