1. Material: Alloy, 316L steel needle, iron, silicone
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: single-pair OPP
6. Dimensions: length 11 cm
7. Weight: 2.6g