phone mug amplifier On March 5, 2012March 3, 2012 By Rick McIn music, product endorsements Kelsey showed me that any device with an external speaker can be amplified, merely by placing it in a mug. Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email Like Loading...