Model Number:Yunxwdraf82g9qzm Product Dimensions:1 x 1 x 1 cm; 980 Grams Material:Zinc Special Features:Wireless, Key Unlock Item Weight:980 g Features: Made of good quality zinc alloy and stable performance. Invisible remote control lock, specially designed for home security. No keyholes outside, there is no way for thieves. Tiger lock method, more safe and stable. Super design and easy for installation. Specification: Host Machine: Material: Zinc Alloy Size: 15.5 * 8 * 3.5cm Power Supply: 2 * AA batteries(not included) Transmission Frequency: 433MHz500KHz Operation Range: Within 20m Unlock Mode: Remote control unlock& Mobile Phone Unlocking (additional Bluetooth adapter is required) Remote Controller: Color:Silver Size(Each): 6 * 3 * 1cm Battery(Each): 1 * CR2032 3V(Included) Standard Number: 4 (included) Maximum Controller Number: 16 (not included) Function: Lock & Unlock Package List: 1 * Lock(Not included batteries) 1 * Lock Body Holder 1 * Lock Catch 4 * Remote controller(Built-in batteries) 1 * Bag of Mounting Screws 1 * USB Cable 3 * Fixed Sticker 1 * Manual About this item Easy to Install: Made of good quality zinc alloy and stable performance. This remote control lock is also very easy to install, you just need to follow our instructions and you can do it in minutes. Intelligent: Invisible remote control lock, specially designed for home security. High Security Index: The design without keyhole outside can make your security more secure. Wide Application: Remote controls with digital conversation system, cannot be decoded or duplicated. Ideal for office, home, hotel, anti-theft door, hall door, wooden doors, garage door, etc. After Sales Service: If there are any using problems or unsatisfactory with our products, please feel free to contact us, our professional customer service team will consult the issues with sincerity. Thanks for purchasing from us. Easy to Install Intelligent High Security Index Wide Application After Sales Service