[. . . ] They feature a balanced sound with good bass reproduction, turning your music into a true sound experience. [. . . ] The MX 250 is fitted with Sennheiser's Sound Protection System, while the MX 350 and MX 350 pink additionally feature Sennheiser's innovative Basswind system. Upgrade your portable sound MX 250 features Earphones with metal mesh for protecting the acoustic systems Transparent design Ideal for use with portable players such as MP3 or CD Powerful stereo sound Easy handling due to asymmetrical cable Two-year guarantee MX 350 / MX 350 pink features Earphones with Basswind system Balanced sound with good bass reproduction Ideal for use with portable players such as MP3 or CD Powerful stereo sound Connector with moulded anti-kink sleeve Easy handling due to asymmetrical cable Two-year guarantee Technical Data MX 250 MX 350 MX 350 pink Model EAN Code UPC Code Cat. Design MX 250 40 44156 00144 9 6 15104 10168 5 500229 transparent blue earphones, silver print, black ear pads, grey cable 19 ­ 20, 000 Hz dynamic 32 intra-aural 12. 5 g 3. 5 mm stereo jack (straight) 1 m, asymmetrical MX 350 40 44156 00070 1 6 15104 10080 0 500147 MX 350 pink 40 44156 02305 2 6 15104 13455 3 502162 black earphones, silver print, black pink earphones, black print, grey ear pads, black cable, chromeear pads, pink cable, chromecolour decorative element colour decorative element 18 ­ 21, 000 Hz dynamic 16 113 dB intra-aural 13 g 3. 5 mm stereo jack (straight) 1 m, asymmetrical 18 ­ 21, 000 Hz dynamic 16 113 dB intra-aural 13 g 3. 5 mm stereo jack (straight) 1 m, asymmetrical Frequency response Transducer principle Impedance Ear coupling Weight (without cable) Connector Cable Packaging Design Packaging dimensions (WxHxD) Carton dimensions (WxHxD) Number of units in carton Languages Sound pressure level (1 kHz, 1 Vrms) 109 dB carton/blister pack: green, white, blue, silver 95 x 220 x 20 mm 230 x 215 x 125 mm 10 D, GB, F, I, E, NL carton/blister pack: yellow, orange, white, blue, silver 95 x 220 x 20 mm 230 x 215 x 125 mm 10 D, GB, F, I, E, NL carton/blister pack: yellow, orange, white, blue, silver 95 x 220 x 20 mm 230 x 215 x 125 mm 10 D, GB, F, I, E, NL MX 450/MX 55 The MX 450 and MX 55 are powerful earphones with Basswin system for excellent sound on the move. Design MX 450 40 44156 00145 6 6 15104 10169 2 500230 silver earphones, black print, black ear pads, silver cable, chrome-colour decorative element 18 ­ 21, 000 Hz dynamic 16 113 dB intra-aural 13 g 3. 5 mm stereo jack (straight) 1 m, symmetrical MX 55 40 44156 00146 3 6 15104 10170 8 500231 black metallic earphones, silver print, black ear pads, black cable, chrome-colour decorative element 18 ­ 21, 000 Hz dynamic 16 113 dB intra-aural 13 g 3. 5 mm stereo jack (right-angled) 1 m, symmetrical Sennheiser is a trademark of Sennheiser electronic GmbH & Co. KG · www. sennheiser. com 095197 08/07 Printed in Germany Frequency response Transducer principle Impedance Sound pressure level (1 kHz, 1 Vrms) Ear coupling Weight (without cable) Connector Cable Packaging Design Packaging dimensions (W x H x D) Carton dimensions (W x H x D) Number of units in carton Languages carton/blister pack: turquoise blue, purple, white, blue, silver 95 x 220 x 37 mm 230 x 215 x 125 mm 6 D, GB, F, I, E, NL carton/blister pack: blue, grey, white, silver 95 x 220 x 37 mm 230 x 215 x 125 mm 6 D, GB, F, I, E, NL [. . . ] Design MX 450 40 44156 00145 6 6 15104 10169 2 500230 silver earphones, black print, black ear pads, silver cable, chrome-colour decorative element 18 ­ 21, 000 Hz dynamic 16 113 dB intra-aural 13 g 3. 5 mm stereo jack (straight) 1 m, symmetrical MX 55 40 44156 00146 3 6 15104 10170 8 500231 black metallic earphones, silver print, black ear pads, black cable, chrome-colour decorative element 18 ­ 21, 000 Hz dynamic 16 113 dB intra-aural 13 g 3. 5 mm stereo jack (right-angled) 1 m, symmetrical Sennheiser is a trademark of Sennheiser electronic GmbH & Co. [. . . ]