Feature: 1. Security Keyless Deadbolt: Invisible remote control door lock, no keyhole design, cross lock, anti prying, anti pull, anti technology and violent unlocking. 2. Exquisite Workmanship: Dual system, dual circuit dual motor design, backup motor can be used in case of failure; Only successfully paired remote control can be unlocked. 3. Remote Control: Mobile phone remote unlocking, as long as there is WIFI at home, mobile phone has network, even you're not at home, you can help relatives and friends open the door. 4. Low Battery Alarm: When the power is lower than a certain value, the lock will issue an alarm, and the backup system will be automatically switched when the power is lower than 10%. 5. Easy to Unlock: Indoor touch switch lock, touch with your finger to easily open and close the lock. Support inductive automatic locking, you can also set automatic locking. Specification: Item Type: Wireless Keyless Electronic Lock Material: Zinc alloy Applicable APP: For Tuya smart Lock Body Power Supply: AAx4 (not included) Battery Life: 12 months Remote Control Range: Within 20m/65.62ft (unobstructed) Transmission Mode: Each time the frequency conversion signal, to prevent copying Unlocking Method: Remote control unlocking Remote Control Frequency: 433.92Mhz Number of Remote Controls: 10pcs Single Remote Control Battery Type: CR2032 coin cell battery 150mAhx1 (built in) Size: Approx. 165x87x36mm/6.50x3.43x1.42in. Package List: 1 x Door Lock1 x Latch1 x Bracket1 x Gateway2 x Remote Control13 x Screw7 x Drive Pin6 x Gasket3 x Sticker1 x Instruction Manual Note: