Sealed 2009 Reissue Of Seminal Electronic Album. “A Concept Album Exploring Themes Of Broadcast Communications, Radio-Activity Marked Kraftwerk's Return To More Obtuse Territory, Extensively Utilizing Static, Oscillators, And Even Cage-Like Moments Of Silence To Approximate The Sense Of Radio Transmission; A Pivotal Record In The Group's Continuing Development, The Title Track -- The First They Ever Recorded In English -- Is Their Most Fully Realized Electro-Pop Effort To Date, While "The Voice Of Energy" Precipitates The Robot Voice So Crucial To Their Subsequent Work.” - Jason Ankeny, Allmusic