The House of Marley Champion portable Bluetooth wireless earphones have a isolating ear-insert design. These iPod/cellphone-centric earphones are intended for use with iPods, iPads, some other cell phones, as well as standard audio devices, and have a claimed reception range of around 33 feet and are intended for use with Bluetooth enabled audio devices including cell phones, as well as standard audio devices. The earphones have an inline microphone and inline remote with xxmusic player function, and call connect/disconnect controls. Additional features include an earpiece that can be used alone for one ear monitoring of Bluetooth streamed audio and telephone communications. Charging/carrying case has built-in rechargeable battery that the manufacturer claims can be used to recharge the earphone batteries for an additional 20 hrs. of playtime for a total of 28 hrs. (Manufacturer claims different battery life info in Technical specs on website - claims Battery Life: Max 6hrs(24hrs with Case). 8/28 listed on website and on box) Manufacturer claims water resistance (IPX4). Has music player play/pause, call connect/disconnect, next/prev track music player function controls, and digital voice assistant activation. Has Bluetooth connection, low battery and power off alert tones. Has quick charge feature: 15 min of charging will provide 2 hr. of playtime. Supports compatible digital voice assistants when used with Bluetooth connected devices that have those features. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. The Champion comes with 2 pairs of ear pieces in various sizes, USB-A to USB-C connector charging cable, charging cradle/recharger battery/carrying case, Quick Start Guide, Warranty Booklet, Welcome Card, and Sticker and is covered by a 24-month parts/24-month labor warranty.