TIC CORPORATION WRS011SL Extension Wireless Rock Speaker For Ticwrs010Sl Slate • Add-On Speaker For Ticwrs010Sl • 2.4 Ghz Operation • 300-Ft Maximum Range • 8 Selectable Rf Channels • Freq Range: 2400 Mhz - 2483 Mhz • 5.25, Dual Cone Speakers • Freq Resp: 90 Hz - 18 Khz • Teflon(Tm) Sealed, Multilayer Composite Cabinetry • Safe 9V Main Supply Or 6 Aa Battery Operation • Weight: 5 Lbs • Dim: 10.2H X 9.2W X 8.7D • Slate