Product details Connection mode: Bluetooth connection Frequency response range: 100HZ-20KHZ Signal-to-noise ratio: ≥85dB Number of speakers: 2 Effective distance: 10m Box material: ABS Appearance size: 180*106*100 Item no: S3 Color: black, white Power supply mode: USB Waterproof grade: IPX 5 Bluetooth version: 5.3 Built-in battery capacity: 2000mAh-4000mAh (inclusive) Rated power: 20 Product net weight: 850g