Applicable scenarios: car, desktop, fitne, outdoor, home, mobile, square dance, broadcasting system, outdoor lawnConnection method: Bluetooth connectionFrequency Response100Hz-20KHzSignal to noise ratio: ≥ 75dBNumber of speakers: 2Effective distance: 10 metersBox material: metalAppearance size: D7 * H19CMProduct weight: 0.4 (KG)Article number: Electroplated MINI2+Colors: blue, black, red, gold, sierPower mode: USBWaterproof grade: X1Bluetooth version: 5.0Rated power: 200Rated voltage: 5Shell proce: ABS plastic electroplating rubber oilBuilt in battery: Built in batterySupported formats: TF card+USB driveOutput power: 2*57WInput power: 200WBattle Drumfeatures:wirele speaker-Color: Red.-Material: ABS plastic, electroplating, rubber oil.-Size: 23cm * 10cm * 10cmstandard:Working range: 10 metersFrequency response range: 100Hz-20KHzSignal to noise ratio: ≥ 75dBPlay: Wirele connection/TF card/AUX input/USB diskWeight: 600gInstruction:First: the speaker needs to be fully charged, otherwise it will affect the normal of the speakerSecond: the of onsPower on: pre the power on to power on or offBluetooth connection: turn on the mobile phone's Bluetooth and search and pair the speaker Bluetooth "H9"PS: Please do not insert the audio cable when connecting to Bluetooth, otherwise the Bluetooth connection will fail.Volume key "—": pre the volume to decrease. switch to the song or the program.Volume key "+": pre the volume up. switch to the previous song or the previous program.Phone key "☎︎": answer the phonePa key: Pa music or programsRadio: Plug one end of the audio cable into the speaker, and leave the other side unplued. Pre the radio on to turn on the radio. Nothing happens when you pre it once, please pre it several times.USB: Insert a USB f drive with pre-downloaded music. Or other equmentTF: Insert TF cardNotice:First: The speaker will automatically loif it is not suitable for a time. In this case, you need to plug in the audio cable and pre and hold the power on to turn it on.Second: Please fully charge the speaker before using it.Third: Please do not insert the audio cable when connecting to Bluetooth.Fourth: Please insert the audio cable when using the radio function.