1. Material: PVC
2. Fitting: wrap-around
3. Speaker size: 40mm diameter
4. Ohm eating: 32 ohm
5. Helmet cable specifications: 2.0mm/3-core shielded enameled wire
6. Helmet headphone cable length: 65cm long speaker cable, 25cm short speaker + plug cable
7. Helmet plug specifications: 3.5mm nickel-plated straight, 3-prong plug