Specifications: Product size: 98 * 86 * 46mm / 3.8 * 3.4* 1.8in Product weight: 0.3kg / 0.63lb Product material: PC Battery capacity mah:Real 15000 mAh Output power W: 5W-10W Input: DC 5V Fan speed : 5 Speeds RPM: low-10000 RPM; high-16000 RPM Noise: <52db ( quiet) Package list: 1* fan 1* usb charging cable 1* neck strap 1* brush 1* user manual.
