InLine PURE mobile ANC are wireless earphones with hands-free speakerphone for Bluetooth devices such as mobile phones or tablet computers.\n\nWith the function keys on the control panel, volume and music playback as well as telephone calls can be conveniently operated with one hand.\nFor relaxed listening enjoyment, the InLine® PURE mobile ANC headphones use an innovative technique for actively reducing ambient noise (ANC). Miniature microphones integrated into each ear cup take away ambient noise and create a 180° phase-delayed disturbance noise which effectively reduces ambient noise levels. This makes our Earphones a perfect companion when traveling by plane or by train, since unwanted noise can be reduced practically at the „push of a button“ without impairing playback audio quality. To recharge please use the included USB cable to connect the Earphones to your PC or another USB power source such as a power bank.\n\nThe InLine® PURE mobile has an environment awareness mode within the ANC function. In this mode you can better perceive and amplify the voice frequencies in your environment at the touch of a button. You can hear announcements and even talk in noisy environments without removing your headphones.