Function: insert card, radio, voice prompt, call function, with desk lampApplicable scenarios: desktop, fitness, outdoor, home, mobile and portable, karaoke, outdoor lawnSpeaker unit: 52 double speakersType: Bluetooth speakerConnection method: Bluetooth connectionInterface type: USBFrequency response range: 60Hz-15KHzOutput power: 2*5WSignal to noise ratio: 70dbPower supply mode: built-in lithium batterySound track: 5.1Play time: 8 hoursExtended storage: 16GBBluetooth protocol: 5.0Number of speakers: 2Effective distance: 10 metersOperation method: buttonApplicable crowd: GeneralDisplay: YesShell material: plasticWhether to support APP: NoSupport format: TF cardSpeaker adjustment method: buttonIs there a radio function: yesBox material: plasticAppearance size: 145*124*68mmProduct weight: 480g (KG)Clear packaging: a single audio host, a charging cable, and a user manualColor: white, pink, blue, blackPower source: USBWaterproof rating: ipx 1Bluetooth version: 5.0Shell process: ABS+pearl oilBuilt-in battery capacity: 2000mA-4000mABattery capacity: 4000Speaker structure: ABSSmart functions: alarm clock, temperature, time, radio TF U