Blue microphones which specializes in building microphone equipment has released Mo-Fi headphones. It contains 240mW amplifier which is powered by 1020mAh batteries. It means that headphones can work up to 15 hours without power and give out excellent sound from any device. Even if batteries run out, mo-fi can work more in a passive mode. Headphones contain the unique multi-jointed headband was inspired by the finely tuned suspension of an open-wheeled Formula One race car, which makes it even more elegant.