[Full-Color Smart Touch Screen]The charging case features a vibrant touchscreen display for intuitive control of music, volume, gaming mode, calculator, stopwatch, and various widgets, offering convenience without relying on your phone. [Advanced Noise Cancellation]Equipped with a new noise-canceling chip, the S09 blocks up to 99.44% of external noise, ensuring a serene listening experience in any environment. [Versatile Usage Modes]Four switchable modes cater to diverse user habits and scenarios, adapting to your lifestyle seamlessly. [Long-Lasting Battery]Enjoy extended playtime with quick charging capabilities - earbuds fully charge in about 1 hour, while the case takes 1-2 hours. [Sports-Ready Design]With IPX4 water resistance, these earbuds are perfect for workouts and outdoor activities, withstanding sweat and light rain. Specifications: Model: S09 Chip type: Jie Li Bluetooth-compatible version: V5.4 Bluetooth-compatible frequency: 2402MHZ-2480MHZ Battery capacity: earbud: 30mAh, charging case: 800mAh Transmission distance: 10-15M Charging time: about 1 hour for headphones, about 1-2 hours  for charging case Frequency response range: 50~5KHZ Speaker: 12mm dynamic coil Noise reduction: -35DB Waterproof performance: IPX4 Material: PC+ABS