Combining the incredible sound quality you would come to expect from Bose headphones with the ability to track your heartrate, the SoundSport Pulse Wireless Headphones wirelessly connect to your mobile device using Bluetooth or NFC.The headphones will give you up to 5 hours use from a single charge of the lithium ion battery. If you receive a call whilst listening to your music, there is an inline microphone which lets you carry on your workout whilst answering or making calls without touching