Regular price: 430,000 yen This is the Fir Audio M5. I think it's in good condition for a used item. Please take a look at the photos. All accessories are shown in the photos. The original box is only the top box shown in the photos. The bottom box was broken by a child and is not included. Why don't you try using it? The sound is very good and wonderful. Specs: ■ 1x Dynamic Driver (Low) ■ 3x BA Driver Units (Mid-High) ■ 1x Electrostatic Driver (Ultra-High) IEM Custom IEM 64audio empire ears campfire audio vision ears shure westone effect audio luminox audio aaw canal works ultimate ears ue jh audio fitears noble audio