The Shure SHA900 is a compact, portable headphone amplifier that is compatible with both analogue and digital audio sources. Audiophile-quality conversion delivers an exceptionally detailed audio signal over a micro-B USB connection, while premium analogue components provide a clean, uncoloured signal path for analogue audio sources. Not only work as a DAC amplifier, SHA900 also equipped with 4-band parametric EQ. The parametric EQ allows the user to adjust Frequency, Gain or attenuation, and Bandwidth or Q factor of a given EQ filter. Features five preset settings, and four customizable settings, allowing you to enjoy the original source or customize the music to suit your unique taste. Ordinary “headphone amplifiers” have typically been focused on consumers using premium headphones and have designed their amplifiers to perform accordingly to properly drive such high impedance products. While earphones could be used, as low impedance products, they would be susceptible to poor performance due to the mismatched impedance. Conceived to enhance all sound, the SHA900 was engineered for both earphones and headphones, your way, anywhere. Take control of the music with sophisticated customizable EQ function, allowing you to fully tune the tonal balance for your own sound signature. High Res Audio Support Digital or Analog input USB Rechargeable battery with up to 20 hours Custom EQ Sacrificing sound quality when you’re on the go is a thing of the past with the SHA900 Portable Listening Amplifier. Use it with your mobile device to enhance the experience of your favourite earphones and headphones.