Brand Name: VIKEFONPower Source: BatteryInbox adaptor: NoCabinet Material: PlasticAudio Crossover: Two-WayWaterproof: YesCommunication: USBCommunication: BluetoothSpeaker Type: PortableChannels: 2 (2.0)Support APP: NoBattery: YesCategory: SpeakersUse: CampingOrigin: Mainland ChinaSound Mode: 3D Surround Sound ModeSound Mode: Stereo Sound ModeSound Mode: Extra Bass ModeVoice Control: NoPower Source: BatteryNumber of Loudspeaker Enclosure: 2Input Power(W): 25-49 WHigh-concerned chemical: NoneInput/Output: USBIntelligent Personal Assistant: NoneWidth[mm]: 80Depth[mm]: 180Remote Control: NoSupport Apt-x: NoControl: Volume controlNumber of devices connectable simultaneously: 2Bluetooth Version: 5.0Total Harmonic Distortion: 75Sensivity: 0.5Output Voltage: 30WSupport Memory Card: YesFeature: Phone FunctionFeature: Play VideoPlayback Function: RadioPlayback Function: MP3Playback Function: FLACPlayback Function: apePlayback Function: WAVDisplay Screen: NoMaximum wireless range[m]: 10m-20mCertification: CEWi-Fi Music: Apple MusicPMPO: 50 WImpedance: 4 OhmActive Noise-Cancellation: PassiveMaterial: PlasticDisplay Screen: NoBuilt-in Microphone: YesHeight[mm]: 80Frequency Range: 100Hz-20KHzItem Condition: NewChoice: yes