Interface Type: USBConnection method

: USB 3.5MM audio jackFrequency response range: otherOutput power

: otherSignal to noise ratio

: ≥65dBChannel

: 2Power supply method

: USBMode of operation

: Plug and playExtended storage

: not supportedNumber of speakers

: 2Bluetooth protocol

: Not supportedEffective distance

: otherBattery capacity

: no (A)Play time

: NoneShell material

: plasticAppearance size

: 10.4*9.7*13.5cmProduct weight

: 0.76 (KG)Support format

: USB audioIs there a radio function

: NoPlay format

: MP3Speaker adjustment method

: Online volume key adjustmentPackage include: a pair speakers