beyerdynamic Soul BYRD, In Ear Hi-Fi Headphones, Ergonomically shaped housing with decorative panels made of anodised aluminium, Closed, Frequency range: 10 - 25,000 Hzz, 1.2 m long flexible cable with 3.5 mm stereo plug (4-pin), Universal 3-button remote control, Includes 5 pairs of silicone earmoulds in size XS, S, M, L, XL plus hardcase, Ear fittings from Comply (500 series) can be used (optional), e.g. article no. #419003#, #419023# or #419022# (not included)