The improved performance

First amn raises the question who actually need an amplifier for headphones - unless you are a professional musician? The answer is simple: all which have good headphones and a smartphone. Who has good headphone is usually bitterly disappointed by the acoustic capabilities of smartphones, where this classic mp3 player ever replace just today.
This gap is closed the E1 SB1600. With a few simple steps, the amplifier will be charged at a standard USB port and then connected between smartphone and headset and away you go. The result is impressive, silent or poorly compressed music is really good again, so you can even fire up an audio system again appropriate.

What can the E1 yet? On the one hand you can easily hear a couple music, built-in microphone works as a speakerphone with voice filter really good and finally you do not have to choose between good earphones and hands-free but has both. Whoever wants to really get the most out of its technology with a simple software can adjust the amplifier to the computer user's preference and play your own Equalizer.

The device itself is processed awarded, all the buttons are stable, the volume control is finely adjustable and yet firm enough so as not to adjust itself when worn. The device itself is about the size of a matchbox, pleasantly light and comes with all necessary cables (which is no longer a matter of course today).

Finally, a word about the term, as an active amplifier extends the performance definitely for one day, definitely more than 15h continuous power you can actually achieve under normal use. It would certainly have been more in it, but with the small dimensions of the E1, the result is very good.

I use the E1 mainly as an amplifier for the event that I want to use my smartphone as a juke box for celebrations, Spotify and Co sound as better, or for the way the headset and handsfree. So far, the performance did not disappoint me and I can really recommend the E1.