Product description    The Samsung MN910 offers HD Voice technology for exceptional voice quality via Wideband-supported phones. Even if you don't have a phone that supports Wideband， the Dolce delivers top-notch sound via its built-in noise reduction and echo cancellation technology， ensuring crystal-clear call clarity on all types of phones， even in noisy environments. You can even stream mono music and podcasts directly to the device from your Bluetooth-compatible media player or computer.