Equipped with Bluetooth 5.0 chip, the RECALL-PRO Bluetooth headset guarantees a stable connection and excellent sound quality. The mini portable charging dock can provide the power needed to support over 6 hours of playback or 8 hours of talk time. The headsets are designed for all-day comfort and optimal sound quality when making calls, listening to music and watching videos. They're not just fashionable accessories, they're for safe driving and relaxing in your free time. FEATURES Bluetooth: v5.0; Maximum distance: 10 meters; Talk time: up to 8 hours; Music playback time: up to 6 hours.