Item Type: Electronic Lock Material: Zinc Alloy Applicable APP: For Tuya Smart Lock Power Supply: 4 x AA (not included) Battery Life: 12 months Remote Control Range: Within 20 meters (no shelter) Transmission Mode: Every frequency conversion signal to prevent duplication Unlocking Mode: Remote control unlocking Remote Control Frequency: 433.92Mhz Support Remote Control Number: 10Pcs Single Remote Control Battery Type: 1 x CR2032 button battery 150mAh (built in) Product Size: Approx. 165 x 87 x 36mm / 6.5 x 3.4 x 1.4in Package List 1 x Lock 1 x Lock Latch 1 x Bracket 1 x Gate Way 2 x Remote Controls 13 x Screws 7 x Nails 6 x Gaskets 3 x Stickers 1 x User Manual 1SMART UNLOCKING: Home Bluetooth electronic lock, which can be unlocked remotely through mobile phone APP, not limited by time and place. 2KEYLESS DESIGN: The remote control lock is designed without keyhole and is locked crosswise, making it difficult to pry or unlock technically. 3DUAL SYSTEM: Adopts double system, double circuit and double motor design. When the lock fails, the standby motor can be used to unlock. 4LOW POWER ALARM: When the power is low, the lock will give an alarm, and when the power is lower than 10%, it will automatically switch to the standby system. 5LOCKING MODES: In the room, you can touch the switch lock, inductive automatic locking, or set automatic locking, safe and convenient.