Features: brand new and high quality You could enjoy the sound-surround ambiance easily. The great sound quality of speaker is perfect for music, movie and game. The usb cable for power. 3.5mm headphone jack can be used for laptop, desktop, cellphone, tablet, projector, USB Charger and etc. Our speakers with colorful RGB lights that create the dynamics mode. Small and compact is easy for mobile listening. Green and low energy consumption digital power amplifier, high efficiency and energy saving. Specifications: Input: DC5V Specification: 50mmx2 Response: 25Hz-20KHZ Signal to noise ratio: 280db Power supply mode: USBDC5V Input: 3.5mm Size:Approx.11.5x7.3x14cm/4.52x2.87x5.51inches Package Includes: 1 Set Stereo Loudspeaker note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.