The oraimo OpenArc (OPN-675) is a pair of open-ear, wireless, air-conduction earphones designed for comfort, safety, and situational awareness. They feature a non-intrusive, lightweight (10g per ear) design using skin-friendly silicone and memory wire, making them ideal for long-term wear without ear fatigue. They offer up to 36 hours of total playtime (8 hours + 28 hours in the case) with fast, stable Bluetooth 5.4 connectivity, 4-mic environmental noise cancellation for clear calls, and a "HavyBass" enhanced audio experience.