C88 Bluetooth Remote Tuya Automatic Smart Electronic Password Door Lock(Black)

1. Password unlocking to prevent password leakage, 16-digit virtual password unlocking, including 6-11 user passwords 2. When the battery runs out, it can be opened with a mechanical key 3. Convenient APP management, automatic locking and unlocking, car structure design, free your hands 4. Low voltage alarm: 4.8V 5. Material: aluminum alloy 6. Scope of application: anti-theft doors, wooden doors, composite doors, steel doors, etc. 7. Unlocking method: password / Bluetooth APP / key 8. Power supply: 4 AA batteries (not included) 9. Unlocking time: about 1.5s 10. Support cell phone system: Android 4.3 / IOS 7.0 or above version 11. Bluetooth standard: 4.1 12. Size: about 16.26 x 7.36 x 2.62cm