Brand N/A Model N/A Quantity 1 Color Black Material PVC Features Cable: 127cm; Connector: K-shape (dual 3.5mm plug) Specification Eliminates surrounding noise quality voice; Can sense voltage in microphone for vocal cord will be vibrate when speaking and can eliminate 90% noise; Diameter: 10.7cm; Elastic; Easy to wear fix PTT velcro in finger then stick PTT button on velcro wear headphone behind neck connect port to device; Great for cycling and driving Application Specially designed for cycling people Packing List 1 x Headphone 1 x Earbud 1 x Velcro