Swimming Vest × 1

Product information:Power Type: USBSpeed Settings: Continuously Variable Speed ControlSpecification: Ultra-Fine Fiber Belt with Button Control

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Computer Wired Earphones, Notebook Desktop Headset Color:Black Swimming Vest × 1Product Information: Type: Headphone Headphone type: headphone Wearing method: head mounted Headphone output audio source: PC Plug diameter: USB Plug type: straight plug type Whether wireless earphone: Wired earphones Is there a microphone: yes Sounding principle: moving coil Frequency response range: 20 20000 (Hz) Impedance: 32 () Sensitivity: 101 (dB) Packing List: Headphone*1