Excellent Technical Art Revolution 8 Tracks Creat Legend R+ Newly Release Whole World Just for the color In order to present the three colors (space sliver, steel blue, metal tarnish) R+(Legend version) Headset perfectly, PC+ABS material has been used as the coat which must be crafted with the procedure of 3 times coating and 3 times grilling to ensure the isolation of the raw color material from the air, so that the color will be bright and durable. 6.Support LINE-IN mode and multi-media playing 7.Long-lasting comfort Ear pads of R+(Legend version) are composed of artificial protein leather as delicate as children skin, suitable to wearing for long a time. 360 degree rotation ear pads are best to fit our ears. 8.Foldable and stretchable design Foldable design is easy for the headset to be used outdoor, you may also adjust the headband best to fit your wearing. Specification: Bluetooth Version: V4.0 Support aptX®、A2DP、AVRCP、HSP、HFP RF Frequency Range: 2402 ~ 2480MHz（ISM BAND） Transmitting Power: Class2 RF Sensitivity: < -85dBm (PER 1 %) Operating Distance: Up to 10m (free space) Frequency Response: 5-25kHz Talk Time: Up to 28hrs Bluetooth Music playtime: Up to 25hrs Standby Time: Up to 1300hrs(50days) Charging Time: 3~5hrs Charging Port: Micro-USB 5PINS Body size: 190*190*80mm Accessories USB charging cable 1pc 1.5m (3.5mm Plug) Audio cable 1pc Pouch 1pc User Manual 1pc