Jbl Tune 520bt Bluetooth On Ear Headphones Purple 6972378121325 SmartAdjust™ and ActivePulse™ technologies automatically SmartAdjust™ and ActivePulse™ technologies automatically tailor your workout’s speed and incline based on your heart rate and performance and powerful bass Voice prompts in your desired language guide you through the Tune 520BT featuresHands free calls with Voice Aware and easily control your sound and manage your calls from your headphones with the convenient buttons on the ear cupMulti point connections allows you to effortlessly switch from one Bluetooth device to anotherThe lightweight materials and soft ear cushions with a padded headband make the headphones comfortable to wear for extended periodsThe foldable design makes it convenient for you to carry your headphones anywhere and anytime you want musicActivate the voice assistant of your device by pushing the multi function button Product FeaturesThe JBL Tune 520BT utilizes the renowned JBL Pure Bass sound the same technology that powers the most famous venues all around the worldWirelessly stream high quality sound from your smartphone without messy cords with the help of the latest Bluetooth 5