【Transparency Mode & ANC Mode switch freely】A simple long press can activate ambient sound awareness, allowing external noise to flow in. It feels like wearing open-ear headphones, perceiving external sounds while commuting or chatting without removing your earbuds. Another long press will enter ANC mode to make a phone call or enjoy music. 【Long Playback Time & Fast Charging】Our Bluetooth earbuds support 6-7 hours of continuous playtime on a single charge, ensuring your music or calls accompany you all day. With the fashion charging case, extend to a total of 36 hours entertainment time! Just 1 hour of charging fully restores the earbuds, perfect for long trips, workouts, and daily commutes. 【Bluetooth 5.4 Technology】This cutting-edge bluetooth 5.4 technology offers lightning-fast data transmission, ultra-stable connections, and extended range up to 15 meters. Enjoy crystal-clear audio with minimal latency, ensuring perfect synchronization for music, gaming, and calls. With Bluetooth 5.4, your device pairs instantly and remains stable even in crowded environments. 【Ergonomic Comfort & Waterproof Durability】Our earbuds feature an ergonomic fit and come with S/M/L ear tips to suit every ear shape. With an IPX7 waterproof rating, they're perfect for workouts, outdoor adventures, or rainy commutes. Widely compatible with various devices, these earbuds offer seamless connectivity and premium performance.