Special function: Auto star Bearing type: sleeve, ball Voltage:5v ~12V Current: 0.11A~0.25A Power:1.2W~1.6W Speed:6500~7500 Air flow:5.40CFM~6.51CFM Pressure:2.24mmH2O~3.25mmH2O Noise:29.96dB~33.85dB Weight:10g