Taiwan –based Genius is an international leading company in computer peripherals presents a new set of portable stereo gaming speakers, SP-i250G for the GX Gaming line. SP-i250G has two omni directional stereo speakers that provide vivid and rich audio. The advanced 40mm neodymium speakers provide deep low notes in a small portable cabinet. Also one can just use one speaker with any audio device. SP-i250G uses a special mechanical to turn the power on/off and adjust the volume by twisting the middle cover. As an added feature an LED ring in the middle of the speaker will change different colors when music is playing. The Gold plated plug makes sound signal transmission smoother and decreases noise. There is a pouch for each speaker and charging is easy by using a USB port. SP-i250G brings amazing dynamic sound performance when one is playing games or listening to all kinds of music anywhere. Product features 360 Degree stereo sound field Rotary power on/off with volume control 40mm high-efficiency metal drivers LED music ring Quick Charge by USB Build in Lithium battery Up to eight hours working time Pouch for each speaker Best Portable choice for notebook, iPod, MP3/MP4 player or cell phone with standard 3.5jack.