The Sabbat X12 Ultra is a IEM designed for today's travel gamer. Great for commutes, errands, and workouts, the more X12 Ultra is both long-lasting and lightweight. The earbuds can play continuously for 6--8 hours on a single charge, and also the charging case which provides around 30 hours of battery life. Wireless earbuds have superb stereo sound, each earbud homes a 10-millimeter driver which provides booming bass, powerful mids, and detailed treble frequencies. To get a secure and easy connection, the X12 Ultra comes equipped with a Bluetooth 5.0 smart dual-chip plus a high-sensitivity antenna.