... can also play on the displayThe monitor dust, anti-theft protection effect. AM LCD lifter appearance simple and elegant, classic style, suitable for ... low noise, waterproof, dust proof and good shockproof performance;4. Our regular size is 17", 19", 21", other size can be ... low noise, waterproof, dust proof and good shockproof performance;4. Our regular size is 17", 19", 21", other size can be ...