The earphones is only 1 pcs. 180° Rotating design, supports left or right ear wearing, and two earphones cannot be connected and used at the same time. 180° Rotating Earpiece For Free Wearing: Black technology with a 180 °rotatin design allows for free switching of left and right ear angles and adjustment of angles, making wearing on both ears unrestricted. Impeccable Sound Quality: Featuring a microphone with CVC6.0 noise reduction technology, these earbuds effectively minimize background noise, delivering quality sound for a clear and immersive listening or calling experience. Comfortable Extended Wear: Designed for prolonged use without discomfort, these non-intrusive earbuds offer an impressive 16-20 hours continuous playback time. Lightweight & Waterproof: Lightweight and comfortable for hours of wear, these sports earphones are IPX5 waterproof, capable of handling sweat, light rain, and accidental splashes, ensuring durability in various conditions. Stable Connection and Low Latency: Utilizing the latest wireless 5.4 chipset, these wireless earbuds provide a stable connection and reliable signal transmission, enhancing convenience in your daily activities with true wireless technology. Effortless Music Experience: With advanced features like long-lasting battery life, superior sound quality, stable connections, and water-resistant design, these earbuds offer a seamless and enjoyable music experience for all your activities.