1. Material: copper, silica gel, iron, zircon, ABS
2. Maintenance: keep dry, wipe with silver cloth, seal and store
3. Note: do not touch chemicals, cosmetics, etc., keep away from humid environments
4. Prevent accidental loss of bluetooth headset
5. Packing method: opp
6. Size: 12.5X0.6 cm
7. Weight: 3.5g