This high-quality keyless electronic cabinet lock features touch button technology and can replace batteries with convenience and speed. Offering up to tens of millions of key combinations, it's perfect for use in cabinets and tool boxes. Keep your items safe with this easy-to-use combination safety lock. Product name: keyless cabinet lock A: 20mm-applicable aperture 19MM, suitable for cabinet thickness less than 15MM B: 30mm-applicable aperture 19MM, suitable for cabinet thickness less than 25MN Surface treatments: matte chrome plating Ultra-long battery life: can be used for 7-10 months, can be unlocked more than 3000 times 1. Unlock/lock Unlock: Enter the factory user password, "1234+OK" or enter the factory management password "4321+OK"; the buzzer "beep." a long sound. The light is always on; rotate within 3 seconds. Lock: turn back, lock. 2. User settings Change password (e.g.: change the factory password to "123123") ①Enter the factory user password "1234+OK" or the factory management password "4321+OK"; the buzzer "beeps" for a long time and the light stays on; ②Press and hold the "OK" button for more than 2 seconds again and the light flashes; ③Enter the new password "123123+OK" and the password is changed successfully. Powered by 4 AA batteries, not included in delivery Colour:Black Material:Zinc Alloy Package Contents: 1 x keyless cabinet lock 1 x English manual Only the above package content, other products are not included. Note: Light reflection 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.