Best 5 earphones under 20$ from aliexpress (good quality earphones from China). Good price-quality ratio.
Earphones:
1. KZ ED9: http://goo.gl/afc3Au
2. Tuna X1: http://goo.gl/qDlBQj (I also use them)
3. Xiaomi Piston 3: http://goo.gl/W1HMTC
4. Tuna X6: http://goo.gl/sMb6d6
5. KZ ED10: http://goo.gl/3JXiCo
Advice:
If you want really good quality, you must also have a device that has a good sound card, because if you use a device with bad sound card, the sound will be bad, even with these good earphones.
Music: http://www.bensound.com
