Product details Material:Bluetooth V3.0 + EDR wireless transmission protocol Size:3.5mm Jack Color:4Colors Condition:100% Brand New Quantity: 1 X Headset 1 X USB Cable 1 X Audio Cable 1 X User Manual (English) Conversion:1 mm = 0.0394 inch, 1 inch=25.4mm Note:the picture shown is a representation of the item,you'll receive from the available lot. Picture may appear larger on your screen. Color may vary slightly due to the color setting of each individual monitor.