The powerful MX 550 earphones feature Sennheiser’s innovative “Basswind” system, a symmetrical cable and an ultra-lightweight volume control. 
 
Features
 Ideal for portable players such as MP3 or CD
 Powerful stereo sound
 Balanced “Basswind” system
 Metal “Sound Protection System” protects the acoustic systems
 Rugged design
 Cable with anti-kink sleeve
 Ultra-lightweight volume control
 Symmetrical cable (1 m)
 2-year guarantee