Your music, anywhere Enjoy a 12-hour battery life with your Endurance Race 2 and 36 hrs using the charging case; with a 10 min recharge using a USB you get 4 hours more. FIT YOUR LIFESTYLE – These sports earbuds use Twistlock technology for a seal, comfortable fit, and have an IP68 waterproof and dustproof design. FOCUS ON YOUR GOALS – Wireless headphones with JBL Pure Bass sound, active noise cancellation and Smart Ambient technologies, as well as dual beam microphones for crystal clear calls. Sport modes Customize your routine using one of 6 modes thanks to the JBL Headphones app or relax with Relax mode after your workout and enjoy evocative sounds. Multi-point connection Connect your Bluetooth headset with multiple devices and easily switch from your tablet to your mobile or take a call with a simple gesture.