Train smarterRun faster. Jump higher. These true wireless sports headphones boast detachable earhooks for a super-secure fit. Energising sound keeps you focused and the built-in heartratemonitor helps you train in tune with your body.Go series headphones. Secure no matter what.• Flexible fit. Ear hooks or wing tips• Listen to your body. Heart-rate monitor• Go hard, stay fresh. UV cleaning• IP57 dust resistant and waterproofFrom workout playlist to vital call• Let the world in when you need to. Awareness Mode• Switch between earbuds as you need. Mono mode• Sound tuned for sports. 9 mm neodymium drivers• Touch controls. Built-in mic. Easy pairingFrom gym to street• Magnetic charging case. Up to 24 hours play time• 6 hours of play time from a single charge• Charge for 15 minutes, train an extra hour• Track your performance and more. Philips Headphones app