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 my 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