1. Portable and foldable wireless Bluetooth stereo headphone 2.Back-hang design 3.High quanlity of stereo sound wireless Model:Z-B99 Ingenuity Back-hang design,lead the fashion trendBluetooth Chip: CSRBluetooth Edition: V2.1 EDRWork Frequency: 2.402GHz-2.480GHz ISM BandHigh flexibility,strength and toughness of the headsetconnection design,are free to distort withoutdeformation,easy to carryThe ...