B+COM EXP01 helmet speakers, custom sound design for improved sound quality. I tried installing these in my current helmet, but the height didn't fit and put pressure on my ears, so I gave up and am selling them. The box and accessories are included, but I'm sorry, I've lost the instruction manual. - Model: EXP01 - Brand: B+COM - Included: 4 pads - Speaker Type: Helmet Speakers Please refrain from purchasing if you are sensitive to used items. Thank you for looking. Price reduced from 6000 yen to 5000 yen.