The Tribit FlyBuds 3S 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. The earphones have an inline microphone and inline remote with music player function, and call connect/disconnect controls. Either earpiece 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 142 hrs. of listening time for a total of 150 hrs. Charging case has USB-A output port and can be used to charge a cell phone. Manufacturer claims water resistance of (IPX8) for headphones. Has touch controls for music player transport, call connect/disconnect, and digital voice assistant activation. Supports compatible digital voice assistants when used with Bluetooth devices that have those features and that, if needed, have the appropriate apps installed. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. The FlyBuds 3S comes with 6 pairs of ear pieces in various sizes, USB-A to USB-C connector charging cable, charging cradle/recharger battery/carrying case, User Manual and is covered by a 18-month parts/18-month labor warranty.