Main Features: 1. Fingerprint Unlock, your fingers unlock everything. 2. IP67 waterproof. 3. 0.2s speed recognition, 360 arbitrary angle recognition, induction rate ≤0.2s 4. Durable structure, zinc alloy and splash proof lock body protects your assets against thieves. 5. Portable, small size and light weight. 6. Family and friend share, up to 10 groups fingerprint can be stored to unlock. 7. Rechargeable lithium battery, no need to buy extra battery. 8. Safe and secure, O11 will remain locked even run out of power. 9. Low Power Alert and quick charge technology.