For twenty years Anchor Audio's Liberty has set the standard in the portable sound system market. Building on the reputation of its battery powered performance and portability, the Liberty Platinum comes to light. Where will you find the Liberty Platinum? At a press conference at the White House. On the track at the Special Olympics. In the gym for a pep rally. On an aircraft carrier for surprise presidential visits. Some companies may say they have portable sound systems, but are you truly portable if you're tethered to an extension cord? Just how long is that cord? With a battery powered Liberty LIB-DP4-AIR- HHHH you won't be tied to a power cord, and you can take your sound system anywhere with ease.