Sennheiser MM 550 Category:   » Audio. video. a photo » Headphones. microphones and accessories for them » Headphones Model: MM 550 Manufacturer: Sennheiser Headphones type       invoices Type of connection       wireless Weight (g)       179 Headphone connector       USB / mini jack 3.5 mm 6.3 mm adapter included       Yes Battery life (h)       20 Charging time (h)       3 Description:

Sennheiser MM 550 headphones