Deep bass, plenty of 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. JBL Deep Bass Sound Get the most from your mixes with high-quality audio from secure, reliable earbuds with 12mm drivers featuring JBL Deep Bass Sound. Comfortable fit The ergonomic, stick-open design of the JBL Wave Flex fits so comfortably you may forget you're wearing them. The stick-open design allows you to enjoy all the sound without blocking your ear-canal. Up to 32 (8h + 24h) total hours of battery life with speed charging With 8 hours of battery life in the earbuds and 24 in the case, the JBL Wave Flex provide all-day audio. And when you need more power, you can speed charge an extra two hours in just 10 minutes.