1. Size: Diameter 3.4 x H1.5cm.

2. Retractable length 58cm.

3. To use silica gel earpiece, it is very light and let your ears comfortable when you using.

4. It’s convenient to use, just only 2 seconds, pull it lightly.

5. Special shell design:

(1) could print the logo and mark on it.

(2) equip a limpid lens to put in mark and DIY personal photo.

6. The cost lowest than wireless and reduce the usage of radiated products, and to avoid harm of electromagnetic wave.

7. It could solve the trouble of clean wired products, it is quickly clean and collect, and convenient to carry with you.

8. “Unilateral Retractable Device”, it have got formal patent license at this unilateral retractable device, selling in USA, Europe and Japan now.

9. The unilateral retractable device applied to your products, to increase your function and added value, it is fit in with diversification and distinction at your promoting.