Simple, Smart, Everyday Fun! Bring your sound everywhere. With bass you can feel, up to 32 total hours of battery life, and a secure, comfortable stick-open design, the splash and dust resistant JBL Wave Flex are designed for your daily entertainment. Whether you’re roaming city streets or relaxing on the beach, your hands-free stereo calls will always be crystal clear, while Smart Ambient technology keeps you aware of your surroundings. And when you need an extra boost, you can speed charge two additional hours of power in just 10 minutes.