Applicable scenarios: car, desktop, fitness, outdoor, home, mobile, square dance, broadcasting system, outdoor lawn Connection : Bluetooth connection Play: Wireless connection/TF card/AUX input/USB disk Frequency Response : 100Hz-20KHz Signal to noise ratio: ≥ 75dB Number of speakers: 2 Effective distance: 10 meters Power mode: USB Waterproof grade: IPX1 Bluetooth version: 5.0 Rated power: 200 Rated voltage: 5 Built in battery: Built in battery Supported formats: TF card+USB drive Output power: 2*57W Input power: 200W Working range: 10 meters Material: plastic+metal colour: red Package Contents: 1 x Bluetooth speaker 1 x Charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.