About this item [Ergonomic Design for Comfortable Fit] Lightweight and ergonomically shaped to reduce ear burden, providing a comfortable fit for most ear types. Ideal for comfortable wear during sleep, exercise, and daily commuting. Multiple ear tip sizes are included to help you find your personalized fit for long-lasting comfort. [Unparalleled Sound Quality] Engineered with newly upgraded 8mm speakers and advanced acoustics technology, our headphones accentuate bass fullness while ensuring that the vocals and high notes are natural and detailed, reproducing CD-quality sound. Prepare yourself for the ultimate immersive audio experience. [55 Hours of Battery Life] The product offers you the freedom to indulge in thousands of songs. A single charge lasts 15 hours, and the total playtime with the charging case is 55 hours via USB A to USB C cable. It also supports wireless charging, allowing you to conveniently charge them without the need for wires or plugs. Rest assured, we have equip