Features iPX5-rated water-resistant construction for sweat proof use and protection from the elements. Enjoy rich, detailed sound with enhanced bass response without inconvenient cables and cords (earpieces are connected by a stylish flat cable for tangle free use). 4.0 Bluetooth wireless capability lets you listen to audio from your mobile device from up to 30 feet away, while our custom fit ear cushions make extended listening a pleasure. Internal rechargeable lithium-ion battery provides 8-10 hours of continuous music or talking. Built-in mic allows you to have wireless phone calls and an in-line remote control puts track control, play/pause, answer/end calls and volume control within easy reach. Voice prompts enhance user experience with Bluetooth pairing and interface confirmations. Multiple ear cushions and earclips for a secure fit. Includes important extras such as USB charging cable and travel pouch.