Brand: Shokz. MPN: E310-ST-GY-US. Shokz Bassphere Technology delivers powerful bass and clear highs   Nickel-titanium JointArc with soft silicone provides a secure, pressure-free fit   DirectPitch Technology minimizes sound leakage   Lightweight open-ear headphones for workouts, commuting, and all-day wear   Dolby Audio with customizable EQ modes via Shokz App