1"Silk Dome Tweeter/Ferrite Magnet/6O/Frequency Range: 1500~30000Hz/Half Space Sensitivity @ 2.83V/1m: 91.2dB
Details: http://www.c-audioloudspeakers.com/Products.aspx?Page=1&Category=SOFT DOME SERIES&Title=C25S0601
(C25S0601)1"Silk Dome Tweeter/Frequency Range:1.5~30KHz