Subwoofer equipped with Bluetooth technology - memory card port - USB port and remote model ZR-8650

OverviewBrand: Zero Color: Grey Port Type: Multi Number of pieces: 3 Speaker Type: Subwoofers Product weight: 6 kilograms Connectivity Technology: Wired/Wireless Compatible with: Multi Model Number: ZR-8650 Shape: Multi Nominal Output: 20 - 30 Watt Are batteries needed to power the product or is this product a battery: 0 Is this a Dangerous Good or a Hazardous Material, Substance or Waste that is regulated for transportation, storage, and/or disposal? : 0 Bluetooth and SD card and remote control