FiiO E1 Portable Headphone Amplifier, Sound Booster With Volume Control - For Apple iPod, Nano, Classic, Video, iTouch And iPhone 3G/4

The FiiO E1 Portable Headphone Amplifier for iPod / iPhone specifically designed for use with Apple's iPod and iPhone. It is the first headphone amplifier in the world with in-line remote control functions. The FiiO E1 has a built in high quality headphone amplifier IC manufactured by Texas Instruments. The FiiO E1 uses the line out signal from the iPod / iPhone, so it provides better sound quality, and is able to drive high impedance or low sensitivity headphones! With the in-line control function, you can easily control the playback of the iPod / iPhone from the E1 Amplifier! The FiiO E1 will bring you better sound quality and a more convenient playback experience! Output power: 100 mW (16 ohms Loaded), 12 mW (300 ohms Loaded) * Signal to Noise Ratio: ?Â¥98 dB * Distortion: < 0.009% (10 mW) * Frequency Response: 10 Hz - 80 KHz * Suitable Headphone Impedance: 16 ohms - 300 ohms * Power Supply: iPod/iPhone power 3.3V * Length: 800mm (Line Exposed) * Weight: 20g