ELENKER Portable Mini Clip-On USB Powered Stereo Multimedia Speaker Soundbar for Laptop Notebook Computer PC Tablets USB Powered Stereo Speaker: USB powered computer speakers will fill the room with your music, movies, or computer games, Let you immerse in the world of vocal music. Clip-On Multimedia Speaker: The clip design allows the portable USB speakers to easily mount on the frame of device vertically and horizontally. The clamping rang is 0.5cm - 1.8cm Adjustable Volume USB Speaker: Turn the speakers on and the volume up with one simple control at the cable for quick access.t deliver the mind-blowing stereo sound. USB Power Speakers: Plugs directly into your USB audio port device for power. plug and play. Broad compatibility: Mini USB Speakers for Laptop, Notebook, Computer, PC, Phone Tablets.