... of human body engineering, design, let your vision and parallel computer screen, achieves the best visual and comfort, innovative, unique ... more fashion cool dazzle 20 CM in diameter. The fan, in close to zero decibels voice of air brought ... large The product specification Size 345 * 340 * 43 Fan. Size 200 * 200 * 20 MM Air 57 CFM ... Fan speed 600±10%R.P.M voltage5V DC Current ...