IWISTAO HIFI 2 Way 3 Inch Speaker Aluminum Casing Bookshelf 40W 60HZ-20KHZ Black It adopts all-aluminum alloy casing with adding sound-absorbing cotton inside, the resonance is lower than that of wooden speaker, the sound field is positioned accurately, its appearance is not faded and not oxidized, and the service life is long. Built-in advanced crossover, not a simple capacitor crossover. 👇👇👇🎶🎶🎶 https://www.iwistao.com/products/iwistao-hifi-2-ways-3-inch-speaker-whole-aluminum-1-pair-bookshelf-computer-speaker-40w-60hz-20khz-black-white?variant=18566591283315 #iwistao #metalspear #deskspeaker #2wayspeaker https://www.instagram.com/p/CmaeirSvCVS/?igshid=NGJjMDIxMWI=