Connection mode: Bluetooth connectionInterface type: USBBattery capacity: 300mahFrequency response range: 100HZ-20khzOutput power: 3WSignal to noise ratio: ≥ 85dBPower supply: Built-in lithium batteryDuration: 1-3 hoursExtended storage: not supportedBluetooth protocol: 2.1Number of speakers: 1Effective distance: 10 mFunctions: Card insertion, radio, call functionOperation mode: press the buttonApplicable people: General
