Developer's DescriptionBy Sakar international inc.,Never miss a beat, download the Altec Software Updater to update your Altec Lansing device firmware and stay up to date...Never miss a beat, download the Altec Software Updater to update your Altec Lansing device firmware and stay up to date!Update available for the following model numbers:IMW479L, IMW480, IMW580L, IMW581L, IMW790, IMW889L, IMW899, IMW901, IMW991, IMW999.