ADDA AD1504 fan spec: size(mm): 15X15X04 bearing type: hypro ... .1~0.22CFM noise level: 9.8~19dBA ADDA AD1504 fan is ADDA new design, it is suitable for ... small space, cell phone,PDA,etc.ADDA AD1504 fan has a good cooling solution for small space system ... 9.8~19dBA8. function: by impedance9. safety approvals: CEADDA AD1504 fan general specification:Electric Strength: 5mA msx at 1500VAC for ...