Product Details Ⅰ. Suitable for wooden cabinets with RFID cards penetrating up to 45mm wood panels, fitting doors 0"-1" thick, ideal for cabinets, lockers, cupboards, data racks, safes Ⅱ. Compact size with sturdy metal LAT-CH and mortise, enabling touch-free unlocking, protecting personal items and improving children's home safety by preventing kids from opening drawers or cabinet doors freely Ⅲ. Features low power alarm with a long beep to indicate low battery after opening, usable approximately 20 times after the beep, and auto-unlock when batteries are too weak, requiring battery replacement before reuse Ⅳ. Two unlock modes available: Single Mode with one user card, and Dual Mode needing two user cards together Ⅴ. Programmable RFID locks allow one key (RFID card/fob) to unlock multiple cabinet locks by programming the key into the locks and testing before installation Specification Ⅰ. Materials: ABS Ⅱ. Color: White Ⅲ. Packing size: 12.5×4.5×6.9cm / 4.92×1.77×2.72in Ⅳ. Net weight: 150g / 0.33lb Ⅴ. Gross weight: 170g / 0.37lb Ⅵ. Battery type: Two AA type batteries (not included) Ⅶ. Applicable scene: Bedroom, Office, Outdoor Package List Ⅰ. 1× Electronic lock Ⅱ. 1× LAT-CH Ⅲ. 1× Card Ⅳ. 2× Keyfobs Ⅴ. 1 Set× Screws Ⅵ. 1× Installation Kit Ⅶ. 1× Manual Warm Tips Ⅰ. Program the key into the locks and test it before installation when using one key for multiple locks Ⅱ. Replace batteries promptly when the low-battery long beep is heard to ensure normal use of the lock