Features 1. Hidden installation, no drilling needed. 2. Bluetooth remote authentication key for more efficient work. 3. Applicable scope: TV cabinets, shoe cabinets, desk cabinets, mailboxes, etc. 4. Real-time view of unlock history, user-friendly intelligent background management. 5. Suitable for a variety of cabinet types: drawer, single-door cabinet, double-door cabinet. It can be installed in drawers and cabinets made of various materials such as wood, iron, PVC, etc. Specification Specifications: Size: 91*40*18mm Material: ABS+PC Unlock speed: 1-3s Unlock distance: ≤10m Power supply: 2*AAA battery (not included) Package includes: 1 x Lock body 1 x Lock ring 1 x Double-sided tape 1 x Blocking piece 1 x Screw fittings 1 x User manual Notes: 1. Manual measurement, please allow 1 ~ 3mm error, thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture. Package list 1 x Lock body 1 x Lock ring 1 x Double-sided tape 1 x Blocking piece 1 x Screw fittings 1 x User manual