Bluetooth Isolation Earphones with Amazon Alexa Voice Control. Supports Amazon Alexa voice control, offering the user only the utmost convenience. Builtin microphone allows for handsfree functionality when paired to a Bluetoothenabled phone and when using Alexa voice control App for Bluetooth Alexa functionality is included, free of charge. Supports a wide variety of outside platforms, such as Amazon Music, iHeartRadio, TuneIn, and many more. Digital volume control and convenientlyplaced buttons allow the user to operate the earphones freely. Enjoy your favorite music in peerless quality for up to 4 hours straight off a full charge. Built to be sweatproof, so you never have to worry about damaging your earphones while exercising. Accessories Included: USB charge cable, 2 pair gel buds.