[Innovative Design and Comfortable Fit] - Laser engraved leather texture combined with metal elements can achieve a balance between exquisity and comfort. The ergonomic design of each wireless earbud, which weighs only 0.14 oz, provides a perfect wearing experience and all-day comfort. [Long Battery Life & USB-C Charging] - 8 hours play time per charge and 2.8 extra charges through the charging case. Free2 classic wireless Bluetooth earbuds extend your enjoyment for up to 30 hours in total. It only takes one to two hours to charge the headphones and charging case thanks to the convenient USB-C charging. [Superior Sound & Reliable Transmission] - The dynamic 6mm speaker provides powerful bass, soft mids, and clear voices for you to enjoy immersive notes. The Bluetooth 5.1 ensures a stable connection and helps to improve sound so that it is more enjoyable for your weekly workout. [Smooth Calls & Easy Touch Control] - The microphones are equipped with a dustproof metal net to reduce the interruption of wind noise and make calls clear and smooth. Effortless touch control on ear allows you to control volume, change songs, pause/answer calls, and activate voice assistant. [Single/Twin & IPX5 Waterproof] - Instant pairing right out of the charging case and transparent connection between single mode and dual mode so you can use one earphone or both together easily. With the IPX5 standard, the Free2 classic Bluetooth headphones are perfect for your everyday light exercises.