So, you are always worried about your mobile phone running out of juice, especially when you are not carrying the charging unit? Enter the GettaGrip Musclephone that needs no charger. Just forty seconds of vigorous squeezing of the GettaGrip Musclephone gives a full recharge to its lithium-ion battery. That comes straight to 20 seconds per hand. The kinetic energy generated by the vigorous squeezing charges the battery. I am wondering how long would this battery last after every kinetic recharge? One more thing, where will we get this phone? If you have any idea, please drop us a line.