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MiPro MI-909 Wireless In-Ear-Monitor System

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Retail Price: $850.00 Instant Savings: -$191.00 You Pay: $659.00 QTY
  • Lifetime Tech Support
  • Best Seller!
  • Q & A

True Digital Frequency Agile UHF Wireless In-Ear Monitor Receiver


MI-909T Digital Stereo Transmitter
The MI-909T is a rugged digitally-encrypted rack transmitter. It operates in a 64 MHz wide bandwidth and allows multiple preset compatible channels operation. Delivering up to 100mW output power, it has high dynamic range stereo audio inputs and is able to withstand professional audio mixers' maximum output levels. Menu settings allow input sensitivity, encryption, EQ DSP processors to be set-up via a rotary control knob. A built-in Scan function enables auto-scanning for an open, interference-free frequency and, once selected, that frequency can sync with the bodypack receiver with a simple push of the ACT button. The MI-909T is ideal for both live applications and professional installations such as language interpretation.

MI-909R Digital Stereo Bodypack Receiver
The MI-909R operates in a wide 64 MHz bandwidth and it has easy to use controls and indicators with a backlit LCD screen. Advanced dual-antenna diversity design eliminates signal dropouts and enhances signal stability. Featuring a lightweight, exceptionally durable magnesium alloy bodypack case, the MI-909R is ideal for professional installations and live applications. Proprietary digital encryption provides secure audio transmission, preventing unauthorized listening in conferences, meetings and language interpretation applications.


  • MI-909T Digital Stereo Transmitter
  • EIA-standard half-rack 19" metal case, LCD screen display, rotary control knob for advanced menu settings and dual audio LED indicator lockable front panel.
  • Up to 16 compatible channels within the same frequency group.
  • Selectable encryption keys with scroll or static setting for single or multiple receivers.
  • Selectable HI, LOW or OFF (mute) output power.
  • High dynamic range, stereo audio inputs and able to withstand the maximum output levels of professional audio mixers.
  • Built-in DSP 3 band ±9 dB EQ settings for audio modifications.
  • Free Scan selects an open, interference-free transmitter frequency and ACT syncs the transmitter and receiver frequencies automatically.
  • Ideal for professional multi-language interpretation system and installation applications.
  • MI-909R Digital Stereo Bodypack Receiver
  • Industry's most compact and smallest housing.
  • Featuring a lightweight, yet rugged, magnesium & glass-fiber reinforced plastic case for stage applications.
  • Backlit LCD screen with superior features and advanced function settings.
  • Dual-antenna diversity design enhances RF signal stability and extends transmission range.
  • Dual unbreakable soft antennas.
  • Selectable stereo, balanced, mono & mixed output modes.
  • Selectable EQ settings.
  • Fast and easy menu controls and indicators accessed by three buttons.


  • MI-909T Digital Stereo Transmitter
  • Frequency Range: 470-639 MHz, 705-960 MHz (country dependent)
  • Bandwidth: 64 MHz
  • Oscillation Mode: PLL Synthesized
  • Channel Grid: 25 kHz
  • Frequency Stability: ± 0.005% (-10-+60℃)
  • Modulation Type: Digital modulation
  • Output Power: Low <10 mW︱ High <100 mW switchable (country dependent)
  • Spurious Rejection: < 4 nW
  • Frequency Response: 20 Hz - 15 kHz (stereo)
  • T.H.D. : < 0.1% (at 1 kHz)
  • ADC Dynamic Range: 112 dBA
  • Stereo Audio Input: 6.3 mm Ø Phone Jack x 2, XLR, 6.3 mm Ø Combo Jack
  • Max. Input: > +26 dBu, Selectable Line / Mic level
  • Audio Input Adjustment: 0--30 dB, 3 dB step
  • Earphone Output: 6.3 mm Ø Stereo Phone Jack with volume control
  • Earphone Output Impedance: ≧ 16 Ω
  • Network Interface: RJ-11 x 2, proprietary MIPRO ACT-BUS
  • Antenna Connector: TNC (50 Ω impedance)
  • Power Supply: DC 12-15V
  • Dimensions (W x H x D): 210 x 44 x 206 mm / 8.3 x 1.7 x 8.1 "
  • Weight: Approx. 1.1 kg / 2.4 lbs
  • Note: Refer to actual product in the event of product description discrepancy.
  • Frequency range and maximum deviation comply with the regulations of different countries.
  • MI-909R Digital Stereo Bodypack Receiver
  • Frequency Range: 470-639 MHz, 705-960 MHz (country dependent)
  • Bandwidth: 64 MHz
  • Channel Grid: 25 kHz
  • Preset Frequency: 12 non-interference compatible frequencies in group 1-10.
  • 16 non-interference compatible frequencies in group 11-16.
  • 16 user-defined frequencies can be stored in group 18.
  • 216 preset frequencies in total.
  • Receiving Mode: Digital diversity receiving
  • Oscillation Mode: PLL Synthesized
  • Frequency Stability : ± 0.005% (-10-+60℃)
  • Channel Set-Up: ACT Sync
  • Modulation Type: Digital modulation
  • Sensitivity: 10μV input level, S/N > 90dB (stereo)
  • Spurious Emissions: < 4 nW
  • T.H.D: 0.1% @ 1 kHz
  • Max. S/N ratio: 95 dBA
  • Frequency Response: 20 Hz - 15 kHz (stereo)
  • Stereo Separation: > 95 dB
  • Volume Control: 126 dB (1dB step)
  • LCD Display: AF/RF meters, Battery status, Group & Channel, R/L balance
  • Output Jack: 3.5 mm Ø stereo earphone jack
  • Output Power: Left/Right x 120 mW @ 16 Ω
  • Earphone Impedance : ≧ 16 Ω
  • Battery Type: 2 AA alkaline
  • Current Consumption: Approx. 170 mA
  • Operating Time: Approx. 8 hours (moderate volume)
  • Dimensions (W x H x D): 63 x 82 x 23 mm / 2.6 x 3.2 x 0.9 "
  • Net Weight: Approx. 98 g / 3.5 oz
  • Transmitter : MI-909T
  • Operating Temperature: -10-+60℃
  • Note: Refer to actual product in the event of product description discrepancy.
  • Frequency range and maximum deviation comply with the regulations of different countries.

Q & A

MFR Part Number
MI-909T / MI-909R
Product Category
Wireless Receivers
Unit of Measure
Shipping Weight
1.00 lbs.
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