Type: Bluetooth speakerConnection method: Bluetooth connectionInterface type: USBBattery capacity: 1500 mAFrequency response range: 100HZ-20KHZOutput power: 5WSignal to noise ratio: ≥75dBPower supply mode: built-in lithium batteryChannel: 2Play time: 8 hoursExpansion storage: 32GBBluetooth protocol: 5.0Number of speakers: 1Effective distance: 10 metersFunction: Waterproof, drop-proof, voice prompt, card insertion, radio, dustproof, call functionOperation mode: buttonApplicable people: generalDisplay: YesPlay format: MP3, APE, WMA, FLC, WAVShell material: plastic, waterproof clothWhether to support APP: NoSupport format: U disk TF cardSpeaker adjustment method: buttonIs there a radio function: yesBox material: plastic + imported canvasAppearance size: 112MM*82MMProduct weight: 0.35 (KG)Power supply mode: USBColor: black, dark gray, passion red, abyss blue, camouflage