Challenge card: Music to my ears === Create an object that makes sound or music. Parameter cards: Parameter Card #1 Permanent Parameter Card #2 Design for Them The design allow users to put in their phone or tablet, which require having a speaker, to play music with this speaker. This speaker can run forever as long as the device can run because the speaker does not need battery. To fit different size of devices, there are ship like plate to put on top of the speaker and to place the device,