These are brand new in the box, never been opened!! Amazing set of earphones that cost $250! Please see Klipsch website for more info, as Poshmark will not give me room to include all the details. LEGENDARY KLIPSCH SOUND - The same advanced acoustic engineering and industrial design from our legendary home theater speakers provide the performance, voice and design for the T5 II Series earphones. They are engineered for pure performance and designed to be the best sounding most comfortable earphones on Earth and the embodiment of legendary Klipsch sound PATENTED OVAL EAR TIPS – Our earphones include 6 sizes of soft, oval, silicon, patented contour ear tips that are designed to reduce ear fatigue, provide the ultimate comfort and an excellent seal for noise isolation and superior bass. They fit better, they feel better, and only Klipsch has them HIGH CLARITY DYNAMIC DRIVER – Engineered to deliver powerful performances from the smallest package, our dynamic driver combines high output, neutral sound and deep bass extension BATTERY LIFE + CHARGING CASE- Featuring NuCurrent wireless charging capability, your case will charge twice as fast as anything on the market. The earphones provide 8 hours of battery life on a single charge and up to 24 additional hours with the charging case. The rugged, outdoor/sport battery case not only charges your earphones but protects them when not in use. You can also expect over an hour of playback from a quick charge of 15 minutes.