Unilateral Retractable Mobile phone charge cable： 1. To use USB to charge it, and the unilateral retractable device is carry with you conveniently. 2. The hot design of unilateral retractable device is super small style, please see photo. 3. The latest design is include IC circuit board for special purpose of mobile phone charged, don’t be influenced on output voltage of notebook PC and desktop PC, this IC design could to protect mobile phone. 4. The surface of products would be made for your design. 5. These connecter could be changed for your demand.