Ultra compact high resolution audio recording 96khz24 bit sound 90 tresmic 3 microphone system for expanded frequency response with better bass capture 20hz to 20 000 hz robust metal body with built in usb up to 39 hour battery life rechargeable battery included audio interface with usb microphone manual recording and limiter ultra compact high resolution audio recording 96khz24 bit sound 90 tresmic 3 microphone system for expanded frequency response with better bass capture 20hz