I have used a radio and walkman together and built the project into a belt with soft buttons so it is wearable.
I made multiples of these and used them for a group performance with Christina Georgiou. We invited people to wear one of three styles of costumes (the belt being one) Christina conducted the participants by giving them rhythms and patterns to follow.
We performed this at the Friend_ship performance art festival - for further info check their site. www.friendship.lv