Type: Portable speakerApplicable people: generalInterface type: USBConnection method: Bluetooth connectionFrequency response range: 40Hz-20KHzOutput power: 220Signal to noise ratio: ≥75dBChannel: 2.1Power supply mode: built-in lithium batteryOperation mode: buttonExtended storage: not supportedNumber of speakers: 1Bluetooth protocol: 4.1Effective distance: 7 metersBattery capacity: 18V/220MAH (A)Playing time: 5 hoursShell material: woodBox material: plastic
