Type: Bluetooth speakerConnection mode: Bluetooth connectionInterface type: USBBattery capacity: 300Frequency range: 100HZ-20KHZ.Output power: 3WThe signal-to-noise ratio is not less than 75dBPower supply: built in lithium batteryChannel: 5.1Play time: 6 hoursExtended storage: 16GBBluetooth protocol: 4Speaker number: 1Effective distance: 10 metersFunction: anti dropping、 call function、 card、 voice prompts、 radioOperation mode: buttonApplicable to the crowd: GeneralDisplay: NonePlay format: MP3Shell material: MetalFormat: support TF CardSpeaker adjustment mode: buttonWhether there is a radio function:Box material: WoodAppearance size: 60*60*60*MMProduct weight: 0.18 (KG)Packing list: box data lineColor: white、 pink、 blue、 green: