4. What are the accessories? Is the cable interchangeable? How to choose suitable ear tips?

 [Accessories included]

  Earbuds*1 pair,

  Headphone cable*1,

  Transparent sponge covers*3 pairs (open hole),

  Bass sponge covers*3 pairs (no hole),

  Anti-slip silicone rings M*1 (transparent black),

  Anti-slip silicone rings L*1 (transparent),

  Silicone wing hooks*1 pairs (clear black),

  Type-C to 3.5mm female adapter,

  Manual*1

【How to choose sponge covers】

  The outer diameter is 16.2mm, and it is recommended to use sponge covers with a diameter of 18mm.

 [Cable]

The FF1 comes with a 0.78mm 2-pin detachable cable. It adopts the recessed 2PIN connectors in order to protect the 0.78mm 2-pin structure and reduce the possibility of broken or bending. But it is not guaranteed to be compatible with the 0.78mm 2-pin cables on the market due to the limit of the structure. The FF1 will be compatible with the FiiO-designed headphone cable, which is still under development.