The V3.0 is more fast.you can try it,
<br />We will carefully test every item before shipment.The quality is guaranteed!
<br />Quantity:1 X mini bluetooth headset
<br />1 X ear hook
<br />1 X USB Cable 
<br />Features:High performance Mono Bluetooth headset, small, lightweight and stylish.
<br />Compatible with all Bluetooth enabled devices such as mobile phones, iPhone, Samsung, etc
<br />Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. 
<br />We guarantee the style is the same as shown in the pictures. Thank you!