The Qstik EVOQ has a bold claim - that its the "world's most advanced Digital Signal Processor (DSP) Bluetooth headset".

It integrates military-grade bi-directional noise and echo cancellation technology, high quality stereo music streaming, sophisticated speech enhancement and wireless VoIP capability.

The result of this combination of technologies is apparently enhanced speech for both the caller and the listener and seamless transfer between music streaming and calls.

The Qstik EVOQ is said to constantly adapt and automatically retune to its surroundings to ensure optimum voice quality throughout the conversation.

This is achieved by sophisticated, fast-converging, low-delay technology not available in other Bluetooth headsets, which Qstik says brings to an end the frustration of intrusive and unwanted background noise mixed with speech.

Available now for £44.99 from Amazon.co.uk.