See all 6 Comrex Access2Go Package Options!Access2GO-5 Includes: Comrex ACCESS-NX Portable Codec Comrex ACCESS NX MIXER 4-channel Stereo MixerBSW ACCESS-NX CustomGator Titan Case- Black Waterproof Injection Molded Case for Comrex ACCESS NX, NX Mixer and accessories. 18″ x 13″ x 6.9″ 2 -Sennheiser HMD300-X3K1 with terminated 1/4in, XLR cable*BSW AccessNX Case will not fit with Connect Modem attached.The HMD 300 XK31 broadcast headset offers innovative communication solutions at great value. The closed-back, circumaural headphone design delivers a frequency response of 60 Hz to 25 kHz. At the same time, ActiveGard limiting technology, compression technology, and passive ambient noise attenuation exceed your audio quality expectations, while a super-cardioid, dynamic microphone ensures you will be heard loudly and clearly. The HMD 300 X3K1 includes a copper XLR 3 to 6.3 mm cable that reduces structure-born noise.HMD 300 XK31 Main Features:Dual-sided earcup design ideal for noise isolation and enhanced immersion applicationsIncludes copper XLR3 to cable for reduced structure-born noiseDynamic super-cardioid microphone for clear communication in noisy environmentsSwitchable ActiveGard limiting technology for protection of noise peaks <110 dBSwitchable microphone boom for left- or right-side configurationLinear sound reproduction for optimized for speech intelligibilityComfortable padding allows for extended use in long wearing sessionsClosed passive earcup construction for superior ambient noise attenuation in loud environmentsFoldable earcup design for easy, space-saving storageHMD 300 XK31 Specifications:Transducer principle: dynamic, closed (Headphones) | dynamic (microphone)Total harmonic distortion (THD): < 0.1 % @ 1 kHz, 100 dB SPLFrequency response: 60 Hz - 25,000 Hz (Headphones) | 40 Hz - 18,000 Hz (Microphone)ActiveGard: 110 dB SPL @ 1 kHzMax. sound pressure level: 123 dB SPL (ActiveGard off)Temperature range: -15 C to +55 C (Operation) | -40 C to + 70 C (Storage)Impedance: 64 0 (Headphones) | 300 Q (Microphone)Output voltage: 0.5 mV/Pa @1 kHzWeight (g): 320 g (without cable)