Chatting on phone drains its battery, but in future ,all the talk time could actually be used to boosts its power. Researchers from Canada have created a chin strap that harvest energy from jaw movements including talking and chewing It is hoped that the device could be used to power electronic devices such as hearing aids , cochlear implants, and even phones . The chin strap is made from a smart material known as PFC ,PFC is a type of piezoelectric material made of integrated electrodes , and an adhesive polymer matrix. The material is able to produce an electric charge when it stretches and is subjected to mechanical stress. In their study researchers , from Sonomax-ETS Industrial Research Chair in In -ear Technologies (CRITIAS) in Montreal, Canada , created an energy harvesting str