Sennheiser HME 27, Professional Broadcast Headset, Circumaural design, Closed-back, Two-piece headband (for those who prefer a conventional headband, a wide headband padding is included that converts the two-piece headband into a compact single piece), Swiveling ear cup for single sided listening, Swivelling microphone can be worn either on the right or the left hand side, ActiveGard limiter protects against sudden noise peaks when activated: > 110 dB, Impedance: 64 Ohm, Maximum input level: 500 mW, SPL (sound pressure level): 128 dB SPL at 1 kHz, Frequency response (headphones): 8 - 18,000 Hz, Microphone type: BKE 10-4; directional chracteristic: cardioid, Frequency response (microphone): 40 - 20,000 Hz, Microphone sensitivity: 16 mV/Pa @ 1kHz, Weight: 240 g, Includes a wind shield, pop filter and a cable clip@+*Note:* Cable is not included. Cables from the 26-II Series are compatible with this headset.@+@+@+Suitable cables available under:@+@+, Article Nr #251432#, Article Nr #448025#, Article Nr #448028#