1. Mini A2DP headphone 2. Stereo music headphone with APTX,AAC 3. Lightly headphone for sport 4. Play long for enjoying music Mini Bluetooth music headphone,lightweight for sportKey specifications:Bluetooth specification: V4.0Bluetooth profiles supported: HSP, HFP, A2DP and AVRCPOperating distance: 10 meters Class IIRechargeable 80 mAH Lithium-ion batteryTalk time: About 4.5 hoursMusic playing ...