[Stereo Sound] Featuring OrigX technology, the earbuds provide deep bass down to 18Hz, while maintaining clear mids and crisp trebles for a natural and immersive listening experience. | [Advanced Sweat & Water Resistance (IPX8): Protects against complete immersion in water under specific laboratory conditions. Designed to handle heavy sweat, rain, and daily water exposure with confidence. | [50Hrs Playtime Endurance] Get up to 12 hours of playtime on a single charge, and extend it to 50 hours with the charging case. Enjoy fast charging,the case fully charged in just about 55 minutes via USB cable, or under 2 hours wirelessly, offering a hassle-free charging experience. | [Bluetooth 5.3 technology] Delivers fast pairing, stable connections, and exceptional sound quality. Whether you're at the gym, on a run, or simply relaxing in the bathtub, these headphones can accompany you well. | [TOZO APP Compatibility] You can freely switch between 32 preset modes and explore various styles of music via TOZO app. Whether you prefer stronger bass or more balanced sound, these earbuds give you the flexibility to follow your fine-tuned audio.