Sealed 1975 Original With Custom Yellow "Radio-Activity" Sticker On Shrink Wrap. Clean Cut Out Hole. “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, All Music Guide.