Product description material: plastic Size: 100*115*135mm Sub box size: 63*63*75mm Color: black and blue, black and white, all black Output power: 5W+3W2 Number of speakers: 3 Signal to noise ratio: 70db Package content: 3*USB computer mini speaker, 1*3.5mm audio cable 1.Superior Sound Quality Performance Excellent in dual high-performance precision drive and 360 surround sound design, with a wide range of new ferrofluids and deep bass, it was installed in this speaker.Unique subwoofer technology . 2.Fits your desktop perfectlyThe size of this speaker does not take up much space at all. It will be a amazing choice to install under your monitor or under your TV. It can quickly establish a stable connection with your devices. 3.High Sound Quality and Enhanced BassThis is a next generation PC mini speaker made while pursuing high sound quality and deep bass.Unique built-in 6 loudspeaker diaphragm makes the low frequency sound quality extraordinarily pure and 360 surround sound. 4.Wide Compatibility90cm USB powered audio + 3.5 mm audio , Plug and Play.It can be suitable for different kinds of device, like PC, Laptop, Desktop,Tablets,etc. Universal 3.5mm audio interface.