Feature Highlights: 1. Complete Value Set – Includes 3 keychain cards and 1 master card, ready to use without programming or activation. 2. Easy Power Setup – Operates on 2 AA alkaline batteries (not included) for quick installation and immediate use. 3. Versatile Compatibility – Designed for wooden doors, drawers, lockers, cabinets, and sliding doors; no drilling required, ensuring damage-free installation. 4. Secure & Durable Build – Features a stainless steel latch and ABS plastic lock body, offering corrosion resistance and long-term reliability. 5. Smart Card Access – Supports IC 13.56MHz chip cards; one master card can control multiple locks for convenient management. Product Details: This invisible RFID electronic cabinet lock provides keyless, sensor-based access for drawers, doors, and lockers. It combines a rebounce-and-lock mechanism for smooth operation with low static power consumption (under 5µA). The motor is rated for approximately 100,000 cycles, and the system includes low-voltage alarm (4.8V) and high anti-static protection (over 15,000V) to maintain data integrity. Ideal for home, office, or storage spaces, it allows easy organization with one master card controlling all locks. Specifications: - Types: 3 Keychain Cards - Power Supply: 2 AA Alkaline Batteries (not included) - Battery Life: Over 15 months - Operating Temperature: -30°C to 80°C - Antistatic Performance: >15,000V - Working Current: Approx. 200mA - Low Voltage Alarm: 4.8V - Compatible Door Thickness: Within 50mm - Color: Black - Material: Stainless Steel + ABS - Size: 11.5×8×5.5 cm / 4.53×3.15×2.17 inches Package Includes: 1 × Lock Mortise (Body) 1 × Door Holder (Side Catch) 3 × Cards 1 × External Power Supply 1 × Installation Screw Bag (6 pcs) Only the listed items are included. Note: Slight color variations may occur due to lighting and display differences. Measurements allow a tolerance of +/- 1–3 cm.