Wireless bluetooth speaker

Type: Bluetooth speakerConnection method: Bluetooth connectionInterface type: USBBattery capacity: 300Frequency response range: 100HZ-20KHZOutput power: 3WSignal to noise ratio: ≥75dBPower supply: built-in lithium batteryChannel: Single speakerPlaying time: 2 hoursExtended storage: 32GBBluetooth protocol: 5.0Number of speakers: 1Effective distance: 15 metersFunction: audio input, voice prompt, card, radio, call functionMode of operation: ButtonDisplay: NonePlay format: MP3, WMAShell material: plasticSupport format: TF cardSpeaker adjustment method: ButtonIs there a radio function: YesBox material: plasticPacking list: speaker, manual, charging cable, audio cablePower supply: USBColor: white, pink, blue, yellow, black