Mivi Conquer Wireless Bluetooth Earphones - Gun Metal 10 hrs of play time: Lithium-ion battery lets you enjoy up to ten hours of play time in medium volume, rechargeable with USB power sources. Super bass and HD sound: Boasting of crisp HD sound, deep bass, clear mids and transparent highs. Stylish finish: Rugged, exterior body made from premium materials that is sure to withstand most conditions. Hands-free: Power on, take calls and control your music with in-line mic and multi-function button. Also convenient opening to charge your earphones. Dual paring: Dual pairing allows to seamlessly connect two devices at the same time for double the entertainment. Always in place: Ergonomic design for a secure fit to keep the headphones comfortably in place during workouts. Noise cancellation: Cvc 6. 0 passive noise cancellation allows for excellent, detailed sound by keeping the unwanted noise out while still allowing you to be aware of the surroundings. Sweat proof: Ergonomic design for a secure fit to keep the headphones comfortably in place during workouts. Aptx: Especially tuned for the modern audiophile, apt x technology helps deliver unmatched quality in sound reproduction. Mivi warranty: We took immense care and used advanced technology to build a worry free product. But just in case you have an issue, this product comes with a one-year limited manufacturer warranty and amazing customer service.