Semi-open dynamic audiophile headphone suitable for most kinds of music. The accurate sound profile and comfortable headband make the HD330 the perfect headphone for both the music enthusiast and the professional recording engineer. With a carefully tailored frequency response and enhanced bass, the HD330 offers a bass punch and excellent clarity of sound with a natural and balanced character. Soft earpads and adjustable, sliding earpieces, together with a single-sided connecting cable, ensure listening comfort during long-term use. A sturdy plastic storage box ensures secure protection during transportation.Driver: 40mm diameter, neyodymium. Sensitivity: 96dB SPL (1mW). Frequency Response: 10-30,000 Hz. Maximum Power: 100mW. Rated Impedance: 150 ohms.