Function: insert card, radio, voice prompt, call functionApplicable scenarios: home useType: Portable speakerConnection method: Bluetooth connectionInterface type: USBFrequency response range: 125HZ-20KHZOutput power: 4W THD=10%Signal to noise ratio: 75dBPower supply mode: built-in lithium batteryChannel: 1Play time: 8 hoursExtended storage: not supportedBluetooth protocol: 5.0Number of speakers: 1Effective 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: 76*76*88mmProduct weight: 300 (KG)Packing list: bare metal, charging cable, manualColor: white, pink, blue, yellow, blackPower source: USBWaterproof rating: ipx 6Bluetooth version: 5.0Shell craft: ABS plasticBuilt-in battery capacity: 1200 mA-2000 mABattery capacity: 1400mah