Relax, learn, and create! The Museum of Portable Sound Adult Colouring-In Book tells a mini-history of portable sound technologies through a series of patent drawings suitable for colouring in! Includes drawings of the first transistor radio, the 'Miami Vice' mobile phone, the Walkman, the iPod, and much more! Each drawing includes a descriptive object label, so you can learn while you colour! Plus there are waveforms of sounds in our Permanent Collection for you to test out your synaesthetic impulses upon! Suitable for colouring in with coloured pencils, crayons, markers, and even watercolours (since every other page is text) – tho we'd recommend placing a sheet of paper underneath your colouring page if using wet media.