Wuxi JCNO Materials, a company located in the Wuxi Graphene Industry Zone in China, has created a graphene-based electrostatic speaker. The speakers are reportedly constructed using graphene resin composite materials, able to produce medium and low bass sounds that conventional metal resin compounds cannot reach. The graphene speaker is also said to be simpler, longer-lasting and cheaper to produce than traditional technology.
Electrostatic speakers sound by vibrating the diaphragm before and after with the action of electrostatic force. It can capture the extremely small changes in the music signal to fully show the nuances of the music. This kind of speaker has already been used in applications like cars, theaters and exhibitions.