The Stylophone 350s. Dating from the mid 70’s this is completely different to the smaller Stylophones. Styling is similar th the New Sound version with the wood effect. It has two stili and many voices including wahwah effect. Also it has a photo control which is quite handy. It uses larger pp9 batteries which are situated under the covers at the rear. These covers are opened by using a 5p coin or similar and giving a half turn.