How to Use: Unlock:1. Enter the password, press OK to confirm, "beep..." after a long tone, the green indicator light keeps on. 2. Turn the knob within 3 seconds to unlock. Lock: Turn knob, lock. Change Password: 1. Enter factory user password "1234" + "OK" key, "deep" after a long tone, the green indicator light keeps on. 2. Hold the "OK" key to the " deep..." long tone, green indicator light flashing. 3. Enter the new password "123123" + "OK" key, "ring..." after a long tone is played, the new password is successfully changed. Specification: Item Type: Smart Lock Material: ABS, stainless steel Application: Can be used in bedside cabinet, desk drawer, file cabinet, shoe cabinet, single and double door cabinet, display cabinet Battery Type: 3 x AAA (self provided) Lock Body Size: Approx. 96x54x18mm/3.78x2.13x0.71in Package List: 1 x Lock Body1 x Password Panel 1 x Door Holder5 x Screw