Here we have the Fiio E5 used but in Excellent Condition!!
This amp is designed for people who love loud music but there ipods or phones or laptops carnt go any louder.
with the Fiio you Have extra volume power and also a bass boost switch to add or take away bass from your headphones
it is rechargeable and comes with a usb wall charger
after a good charge the battery can last for up to 4 days of constant music!!!! can deliver via royal mal but its will be an additional charge or 3 pound