According to Microsoft, Electric Shocks Can Be Your Next Ringtone
Microsoft has applied to patent shirts and shoes that give you a slight tingle when you need to check your phone
Nothing says “You’ve got mail!” as vividly as an electric shock. Microsoft wants to use wearable electrical stimuli to replace the vibrate function or ringtones on your phone.
The patent application titled “Wearable Computer Having a Skin-Simulating Interface” is meant to be embedded in shirts or shoes as illustrated in the document. It will link to a mobile device so that each time you get a message, phone call, etc., the wearable device can send electrical stimuli to the skin.