Rock-It 3.0 Vibration Speaker in White.
Product Details:
Turns any object into a speaker!
Simply plug the Rock-It 3.0 into your phone, mp3 player, laptop, tablet or any device with a standard 3.5mm headphone jack and instantly amplify the sound
Sticks to any object - try it with plastic containers, coolers, appliances, cardboard boxes, cups, bowls, lamp shades, filing cabinets and much more! The more hollow the object, the better the sound!
Perfect for home, office and travelling
I wonder if I could stick it to my bosses head, that is pretty hollow