1. Connect Bluetooth to your smartphone
2. For Android And Apple IOS system
3. Call and message notification features
4. Waterproof: Can swim, wash hands comfortably
5. Military Comfort
6. Anti-scratch, anti-shock
7. Antifreeze with -10 ° C below freezing point
8. Can resist 100° C  boiling point of water
9. Unique and smart design

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