Evo Labs Plug and Play External USB Virtual 7.1 Channel Audio Sound Card Adapter, 3.5mm Convertor & DAC for PCs desktops, laptops, notebooks, tablets & mobile devices

Features
Converts 3.5mm headsets into USB headsets
Converts analogue inputs (voice) to digital and vice versa
Virtual 7.1 Channel DAC built in
Connectors: USB Type-A, Stereo output jack, Mono microphone-input jack
Driverless for Windows XP and above/ Linux/ Mac
Reverse Compliant with USB Audio Device Class Specification 1.0
USB bus-powered, no external power required

Designed for simplicity
This product is designed to give analogue audio input (via your headset's microphone) and output (your headset's earpieces) to any laptop, desktop or tablet running Windows XP or above, Linux or Mac OS. 

Turn any 3.5mm headset into a USB headset!
Simply connect your existing 3.5mm headset into this device, and you'll have the flexibility of USB connectivity.

Use your existing earphones, even if there's no earphone socket
This device can take any 3.5mm stereo earphones, or headphones and connect them directly to a USB port.

Hi-Fi Stereo Sound
The stereo audio output provides great sound quality, with a built in EAX 2.0, A3D 1.0 and Virtual 7.1 Channel DAC built right in.

USB 2.0 Connectivity
USB 2.0 connectivity gives pure plug and play compatibility and simplicity

Metal Construction
Designed for portability and durability, the aluminium enclosure is both stylish and durable.