Element of Surprise

bachelor thesis

14 weeks​


petter alfredsson


lund university​


spring 2015

It was quickly agreed that the Bachelor’s Project required an ample theme that we both found interesting. It also needed to include as many different design aspects as possible to create a comprehensive demonstration of our skills. One demarcation from the beginning was that we wanted to make several products which had to be tied together: design and build a pair of visually coherent functional products, which all contain a positive element of surprise that enhances the usability.

video  |  product showcase

A short video that aims to show the main features of the finished products and spike further curiosity.

the brief

research  |  defining the why and how

Target surprise attributes





sketching process

prototyping  |  Testing & building

development  |  details & features

90 mm

Step 3

Step 1

Step 2

The inside of the headphones could only accomodate 90 mm, meaning the headband needed to extend by a factor of four.


final products  |  surprise & usability