Orange manufacturer and service provider for mobile phones was shown a prototype special T-shirts because it can recharge the battery by sound to smart phone. T-shirts that was shown at the Glastonbury Music Festival in England.
Just wear T-shirts and then plugged in to recharge the battery of the smartphone into the plug on T-shirts, which has charging system of electric energy technologies to respond with sounds around you. Orange has tested a prototype T-shirts in the Music Festival to see what sound format, which makes charging best effective by using sound from music performances in this event.
Tony Andrews who jointly developed T-shirts said that "Vibration of sound, especially bass frequencies that are powerful enough to cause vibrations that can generate electricity from simple materials such as piezoelectric film attached to the front of the T-shirt." Testing T-shirt used Orange Sound Charge technology with Glastonbury festival, it seems to be most appropriate. However, the company did not disclose that the T-shirt how many electricity have been able to produce as well as level of the sound. That is because it is a prototype shirt is being testing.