... <0.5ms Frequency response: 20-20Khz Mini 2.1 speaker wireless1. Classic again, MDF & aluminium, built-in ... , horizontal designed, 2.1 audio, 5.25 speaker structure, undertone stronger, output is 30W3. Black with ... aluminium line, it is more fashionable.4. Volume part, according to your request to adjust the sound, ... moreover, it show the blue light.5. Back part, clear cables hole.6. Round edge7. Simply ...