The HMD 26-600-X3K1 from Sennheiser is a professional-quality dual-ear communications headset, ideal for TV and radio broadcast applications. The headset has a lightweight design with an adjustable split-style headband and thick on-ear cushions for lasting comfort. The cushions also help to attenuate unwanted environmental noise. If you need to maintain awareness of your surroundings, the flip-away design allows single-ear listening.

The headphones are designed to deliver high SPL levels, but also employ Sennheiser's ActiveGard technology to protect the listener from volume peaks, minimizing the risk of hearing damage. The hypercardioid dynamic microphone has a focused pickup pattern for excellent speech intelligibility. The flexible gooseneck allows precise positioning, and it can be installed on the left or right side of the headset. When tilted into an upright vertical position, the mic automatically goes into mute mode.

The single-sided steel cable provides exceptional durability, and also minimizes snags and tangles. The cable has unterminated leads, allowing you to attach your own connectors for use with your specific system and devices. The headset has a modular design that allows to you easily replace the cable, mic boom, and ear cushions for a long life of professional use.

• Lightweight design with an adjustable split-style headband and thick on-ear cushions for lasting comfort
• Thick ear cushions help to attenuate unwanted environmental noise, but also have a flip-away design that allows single-ear listening
• Designed to deliver high SPL levels, but also employs Sennheiser's ActiveGard technology to protect the listener from volume peaks, minimizing the risk of hearing damage
• Hypercardioid dynamic microphone has a focused pickup pattern for excellent speech intelligibility
• Flexible gooseneck allows precise mic positioning, and it can be installed on the left or right side of the headset. When tilted into an upright vertical position, the mic automatically goes into mute mode
• Single-sided steel cable provides exceptional durability, and also minimizes snags and tangles
• 3-pin XLR microphone connector and 1/4" headphone connector Modular design allows to you easily replace the cable, mic boom, and ear cushions

Type  Headphone: Dynamic, Closed-Back, On-Ear
Microphone: Dynamic, Hypercardioid  
Frequency Response  20Hz - 18kHz  
Impedance  Headphones: 600 Ohms Stereo, 300 Ohms Mono
Mic: 300 Ohms  
SPL  115dB @ 1kHz, 1V (Characteristic)
127dB @ 1kHz, 200mW (ActiveGard Off)  
Total Harmonic Distortion (THD)  < 0.5%  
Cable Length  6.6' (2 m)  
Connectors  XLR-3 AND 6.3MM
Pressure Levels  3.6N (Headphone Contact Pressure)  
Output Voltage  0.4mV/Pa @ 1kHz  
Operating Temperature  5 to 131°F (-15 to +55°C)  
Storage Temperature  -67 to 158°F (-55 to +70°C)  
Weight  7.1 oz (200g)