The Fiio E5 is a good amp for anyone looking for a small and portable solution. The only problem I have with is when you are moving the divice there is a lot a distortion and do not use in with a smart phone when you receive calls this amp go crazy start beeping, and this is really painful to your ears. Overall I would recommend  this amp to anyone who when small, lightweight, travel friendly and budget friendly amp to anyone who is starting into amp. ""GOOD""