IK Multimedia iRig Acoustic Stage

Dedicated iRig Acoustic Microphone
Microphone Type: MEMS
Polar Pattern: omnidirectional
Frequency Response: 30 Hz - 20 kHz, +/-3dB
Max SPL: 130dB SPL
Signal-to-Noise Ratio: 101 dBA
Maximum soundboard thickness: 4mm / 0.16"
Connections
Dedicated iRig Acoustic Microphone Input: 2.5mm / 3/32" TS mono jack
AUX Instrument Input Connector: 6.3mm / 1/4" TS mono jack
AUX Instrument Input Impedance: 1 MOhms
Analog Output Connector: 6.3mm / 1/4" TS mono jack, line-level, low impedance
Analog Output Impedance: 50 Ohms (can drive long cables without any loss)
Digital Output Connector: micro-USB
DSP/Interface
AD and DA Resolution: 32-bit
Sampling Rate: 48 kHz
Interface Output: USB class compliant audio output via micro-USB port
Power: battery power (2xAA), USB bus power
Battery Life: approximatively 12 hours of continuous usage with alkaline batteries and 15 hours with rechargeable high quality Ni-MH AA cells (2000 mAh and up)