Featuring Powerful cooling delivered by 5 fans Optimized vent mesh for an excellent heat dissipation 5 adjustable angles, you can adjust the angle you want Red lights to increase the sense of atmosphere Tech specs Compatible notebook: 9-15.6" Material: Metal mesh + ABS Product size: 360 x 270 x 32 mm Fan size (5PCS): 60 x 60 x 15 mm Noise: 22-30dBA Air flow: 57CFM Fan life: 30000 H Backlight: red light Fan speed: 2400-3200RPM USB port: USB1.1*2 Power: ≤5W Cable length: 55cm Weight: 720g