The Skullcandy Indy ANC portable Bluetooth wireless noise canceling earphones have a isolating ear-insert design. These iPod/cellphone-centric earphones can be used with the noise canceling feature turned on or off, and 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 and integrated volume, music player function, and call connect/disconnect controls. Additional features include a that 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 14 hrs. Of listening time for a total of 19 hrs. With ANC On OR an additional 23 hrs. of listening time for a total of 32 hrs. with ANC Off, can be recharged via USB cable or with optional wireless charging accessories. Manufacturer claims water resistance of (IPX4). Free Skullcandy app download for Android and iOS mobile devices adds additional features and software updates. The headphone noise cancellation control default setting switches between ANC on, ANC off, and ambient sound monitor (Pass-through) modes by touch control on either earbud. These modes can also be changed using the free Skullcandy app for Android and iOS. Has touch control for power on/off, music player transport, call connect/disconnect, ANC and ambient sound on/off, digital voice assistant activation, and EQ mode selection. Has power on/off, low power, and Bluetooth pairing voice announcements. Either earpiece can be used alone in Solo mode for one ear monitoring of Bluetooth streamed audio and telephone communications. Supports Google Assistant, Amazon Alexa, and Apple Siri digital voice assistants when used with devices/products that have those features. Has a quick-charge feature: 10 minutes of charging will provide 2 hours of audio playback. The Skullcandy app download for Apple and Android mobile devices shows earphone battery level, allows you to create personalized sound profiles by playing a series of audio tones to tune each earpiece to optimal listening settings for each user, allows users to see which EQ mode the earbuds are in, update the earphone firmware, and provide user guides and customer support. Has built in Tile tracker feature; once they are registered with Tile if the earpieces are lost they can be located via the free Tile app download for Apple and Android mobile devices. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level. The Indy ANC comes with Three pairs of ear pieces, two pairs of earbowl supports in various sizes, USB-C connector charging cable, charging cradle/recharger battery/carrying case, Quick Start Guide, User Manual and is covered by a 24-month parts/24-month labor warranty.