Received the Earbuds because my son has a iPhone 6. He set them up in a few seconds and paired it with his phone. He works out at the gym a lot and these work great for him because it has a 3 button remote that he can easily access on the headphones. The bundled Tectonic fit kit includes: four pairs of silicone tips (XS, S, M ,L), a pair of double flanged tips, a pair of expanding foam tips, 3 sizes of ear fins for extra grip in the ear, and ear hooks for those that prefer to wear over the ear.
He prefers the ear fins that grip the ear. He said the sound works good no static. I received these Earbuds complimentary in exchange for my unbiased review and opinion. All opinions and words are my own.