Aubess Smart Invisible Cabinet Lock RFID Sensor Smart Drawer Security No Drill Keyless File Cabinet Locks Android iOS APP Unlock Two product versions: 1. ID card version 2. ID card TT LOCK APP version 1. Easy to install. No need to drill holes, and no damage to your cabinet. 2. Easy to operate. Features auto-rebounce and auto-lock functions. 3. Stainless steel latch and ABS plastic lock body, durable and corrosion-resistant. 4. One master card can be programmed to open multiple locks. 5. Motor lifespan is approximately 100,000 cycles; static power consumption is less than 5 µA. 6. Powered by 4 AA alkaline batteries, providing over 12 months of operation. 7. Master card/keychain is pre-programmed for the lock. Simply install 4 AA alkaline batteries to begin use. 8. Designed for wooden doors only; suitable for drawers, lockers, cabinets, and sliding doors. 9. Standalone reset system allows reinitialization and recognition of all cards. 10. Convenient and efficient operation; no writing or encoding required on cards. Specifications: Quality: 100% New and High Quality Color: Black Material: Stainless steel, ABS plastic Maximum door thickness: 30 mm Compatible door type: Wooden door only Power supply: 4 × AA batteries (batteries not included) Battery life: Up to 18 months Operating temperature: -30°C to 80°C Relative humidity: <95% RH