David Clark HBT-40 - Aurora Class Behind-Head Bluetooth HeadsetThe HBT 40 is designed to be worn with or without hard hats. This headset incorporates outstanding comfort features while remaining an extremely durable communication headset. David Clark Aurora Class Industrial Bluetooth headsets provide extremely reliable performance and communication clarity. Listen only Models HBT 60 and HBT 61 are ideal for use with vibration analyzers and other test and measurement devices. Communication models HBT 30 and HBT 40

The KM 185 NIs provide attenuation at the off-axis sections of the mic

6 channels of clean

water-resistant woofer cone coating

The two type of sets are either Rackmount Sets (-R) come with rackmounts and everything to be mounted in a rack

flexible audio/video system

the subwoofer can be floor or shelf-standing

Another really cool feature is its variable tube output control

with sub-group routable to mix

and with minimal effort

Suitable for large diaphragm mics of 45 mm diameter

The microphones can thus handle levels of up to 152 dB (depending on the capsule type)

Punchy Smoothness