1. Size: Diameter 3.6 x H1.6cm.

2. Retractable length 88cm.

3. Just only 2 seconds when you receiving the call, pull it lightly and wear on ears, it let your hands freedom.

4. Special clip design, usage of hang and grip, it could be upon neck, belt, pocket, and bag; etc.

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

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

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

8. The unilateral retractable device could be apply to your products, to increase your function and added value and diverseness between others.