[Exceptional Sound Quality] Bluetooth 5.0 ensures stable connectivity. High-tech latest QCC3034 chip supporting APTX-HD codec brings CD-like and high fidelity sound. The professional earphone with 10mm driver and beryllium-plated membrane improve sound quality to a new level. [Long-Lasting Usage] Built-in large capacity 300mAh battery provides up to 30 hours play time, one time full charge for long time use, ensuring prolonging enjoyment. A wonderful choice for traveling and long term business trip. [IPX5 SweatProof & Secure Fit] Design for your sporty life - IPX5 sweatproof withstands light rains, dripping sweat. Magnet design plus the carrying bag ensure your earphone portable and tidy, which is appropriate for running, hiking and other outdoor activities. [Clear Calls & In-line Mic] The headset has an in-line mic and volume control buttons, perfect for answering calls or listening. It adopts high definition CVC 8.0 Noise Cancellation technology allowing you to ensure clear and smooth calls. (46)