Features 1.Being assembled together for surround sound, they cause stereo sound to make you feel like you are there, and you can feel the input of the scene. Meanwhile, every wonderful note is stimulating your auditory nerve. 2.Independent metal volume knob can play music after the device is powered on. And volume knob can easily adjust the sound size, and the sound level is richer. Meanwhile, dual-mode version can switch the wired / Bluetooth mode by short pressing the volume button. 3.Double speaker and double air vent design makes you feel strong bass. And full-range speaker bass technology makes the low-frequency loudness enhanced with thick and powerful bass. 4.Sound not only can be separated freely, but also combined to let your favorite music ring through every corner. 5.Textural iron mesh design with the streamline design shell rejects the mediocre surface shape for better sound effect. specificationItem Type: Speaker Signal to Noise Ratio: 65dB Frequency Response Range: 30Hz-15KHz LED Indicator: Blue power indicator Multi-function Button: MODE / volume adjustment knob Output Power: 3W Sound Channel: 2.0 PackageList1 x Speaker