Feature: 1. Invisible remote control lock for home security. For Tuya WiFi smart lock, supports remote unlocking of mobile phones, and can realize intelligent linkage with other for Tuya‑supported products. 2. No keyhole outside, no opportunity for thieves. Strengthen locking method, safer and stable. 3. Supports touch design, which can be locked and unlocked by touching the lock body indoors 4. Super design, easy installation, more attractive and convenient. 5. Made of quality zinc alloy for good stability and maximum durability. 6. The password of remote control can be modified. You can immediately modify its password when losing the remote control, and the lost one is no longer valid. Specification: Item Type: Door lock Material: Zinc alloy Color: As Pictures Shown Door Lock Power Supply: 2 x AA batteries (not included) Battery Life: 6-8 months Remote Control Power Supply: 1 x CR2032 button battery (built-in) Transmission Frequency: 433.92MHz Working Range: Within 20m/65.62ft Unlock Mode: Unlock remote control to unlock, indoor touch unlock, mobile phone WiFi remote unlock Working Temperature: -20-80 ℃. Package List: 1 x Lock1 x Lock Box Bracket1 x USB Data Cable3 x Double-Sided Adhesive Paper1 x Holder4 x Remote Keys1 x Screw Kit1 x WiFi Adapter1 x User Manual (English)