... Channels8CHMaximum launching distance (space)300ftMaximum launching distance of sound remote control100ftFinishCanyon (CN), Slate (SL)Packaging21.3×11× ... be used outdoor and indoor 3.Accessory: Rock transmitter, remote control, rock speaker AC adapters, audio cable, RCA ... Coffee House, School, Amusement Park, Family Entertainment, and some places with difficult Cabling project. 6.Aesthetic apperance to ...