JBL Deep Bass Sound Get the most from your mixes with high-quality audio from secure, reliable earbuds with 8mm drivers featuring JBL Deep Bass Sound The ergonomic, stick-closed design of the JBL Wave Beam fits so comfortably you may forget you're wearing them. The closed design excludes external sounds, enhancing the bass performance. With 8 hours of battery life in the earbuds and 24 in the case, the JBL Wave Beam provide all-day audio. And when you need more power, you can speed charge an extra two hours in just 10 minutes Maximum play time (hours) :8 Ambient Aware: yes Hands Free Call:yes Microphone : yes True Wireless : yes Bring your sound everywhere. With bass you can feel, up to 32 total hours of battery life, and a secure, comfortable stick-closed design, the splash and dust resistant JBL Wave Beam 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. Bluetooth profiles :A2DP V1.3, AVRCP V1.6, HFP V1.7 Bluetooth frequency :2.4 GHz - 2.4835 GHz