Features 1、Dual circuits, high performance, fast identification. 2、Wireless remote unlock/lock controller, touch unlock/lock switch. 3、Steel and metal housing, strong rigidness for maximum durability. 4、Easy and convenient to install, no need for extra wiring. 5、Dry battery power supply, only support indoor application. Specification Features: Dual circuits, high performance, fast identification. Wireless remote unlock/lock controller, touch unlock/lock switch. Steel and metal housing, strong rigidness for maximum durability. Easy and convenient to install, no need for extra wiring. Dry battery power supply, only support indoor application. Suitable for all types of doors: wood, glass, metal, etc. Specifications: Brand: WAFU Model: 011 Material: Metal Color: Shown as picture Remote control master lock: Frequency: 433.92Mhz (±50Khz) Remote control range: 0.5-15 m Working environment: -20~60°, 5-60% Power supply: 4 * AA batteries Battery life: About 6 months if used 20 times per day Unlock mode: remote control unlock / indoor touch unlock Remote Controller: Standard quantity: 4pcs Remote control range: 0.5-15 m Working humidity: 5-60% Power supply: button battery Battery life: recommended to change every 6 months Remote control registration number: up to 20 can be registered Transmission method: frequency conversion signal every time to prevent copying Package Weight: Approx.1012g/35.7oz Package List: 1 x Remote Control Lock 4 x Remote Controller 1 x Lock Box Bracket 1 x Fixator 1 x Installation Accessory Set 1 x English User Manual