[Ingenious Design and Relaxing Fit] The earbud contains laser-engraved leather texture and has ergonomic design blended with metal elements which maintains balance between elegance and relaxation. The weight of each earbud is only 0.14oz and there are three different sizes. They are made of soft silicone which come up with a perfect wearing experience and stays comfortable whole day without protruding even for small ears. | [Durable Battery and Easy Charge] The battery is durable and within about 1-2 hours the earbuds and the charging case can be refilled with USB-C charge. With 8 hours per charge of listening time and another 2.8 recharges can boost up your enjoyment up to 30 hours by the charging case. It can be used for several pupose daily and weekly for studying, commuting, workout, leisure hours, etc. (Note: Not active noise cancelling earbuds and not support wireless charge) | [Finely Tuned, Balanced and Reliable Transmission] The earbud to let you enjoy the immersive beating notes and has built-in 6 mm dynamic driver which presents strong bass, crisp treble, and clear vocals. The finely tuned volume range accomplish various needs for loud and quiet. To establish a reliable connection, it has Bluetooth 5.1 which helps to boost the sound to be more pleasurable for weekly workout. | [Smooth Communication and Effortless Touch Control] To bring down the wind noise and make communication clear and trouble-free, the earbud is furnished with dust-proof metal mesh on the mic. With no displeasure, one can fluently control the volume adjustment, song switch, phone calls, and voice assistant with the help of sensitive on-ear touch control. | [Ceaseless Connection and Sport Earbuds] The earbuds pairs straight away right once it is out of the charging case. Allowing non-stop connection between two different modes, single and twin mode. With these, a person can use one earbud only or both together easily. To maintain your healthy lifestyle, you can have these SoundPEATS Free2 classic earbuds which is ultra-lightweight and its IPX5-rated features which make it good for your well being. | Headphone Usage Issues: "Ensure that the firmware is updated to the latest version and attempt to reset the headphones. If issues persist, please reach out to our customer service team for repair or replacement services."