You really need only one pair of quality headphones. Forget the cheap earbuds. Even if the Apple dropped the 3.5mm headphones connector, it will stay as one of the main connectors for real audio enthusiasts. All the best headphones use either 3.5mm or 6.3mm connector.
If you are not hi-fi or audio enthusiast, then you won’t be needed headphones which cost hundreds of dollars. For that in mind, you need to get Grado SR80E. The SR80e is Grado’s next-gen version of its SR80 Prestige Series on-ear open-back headphone.
It has copper voice wiring and a 4-conductor copper connector – the highest quality connectivity option for the price – open back headphones offer amazing bass with balanced sound, which you will not find in many other similarly priced options or even in higher priced headphones.With the SR80e you will notice improved control of the upper and lower range of the frequency spectrum with both better supporting Grado’s world renowned midrange. Grado SR80E is a legend itself.