The WP-350 features an integrated microphone ("Invisible Mic") that allows you to take calls while listening to music. When you receive a call, you can answer it with a simple press of a button. Thanks to the apt-X audio codec for enhanced audio streaming via Bluetooth, the WP-350 delivers fantastic stereo music playback. Connecting wirelessly to any compatible stereo Bluetooth device is a breeze. The finely tuned neodymium drivers provide excellent sound quality that will delight you not only while listening to music but also during phone calls. Whether you're enjoying music or chatting with friends, the WP-350 with its comfortable ear cushions is a lightweight and compact headset that offers wireless freedom and maximum comfort.