This product eats the Senn G3 and Shure PSM300 for lunch in both spec and performance. It's fully digital, smallest belt pack on the market, True Diversity,  Frequency Response 20 Hz ~ 15 kHz, and it's wide band. Explanation; say the Shure has a G5 band. The Mipro has a G5, G6 and G7. This is really nice when you're in a crowded RF situation or perform in the larger cities.  It can get way louder too. I compared to the G3 and PSM300. I seemed to run those belt packs at 3/4. The Mipro was at half. They all get loud enough but headroom is cool. Looking purely at the specs, there's nothing on the market for under $2500 that touches it.Some ask about latency because it's digital. The latency is the same you would notice using a floor wedge. The time it takes from the wedge to your ear is the same latency of the Mipro. Ever notice that being an issue?Here's the stuff from the manufacturer: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 body pack 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.Key Features:• 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.Specs Frequency Range 5E 480~544 MHz    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 × 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 × 2, proprietary MIPRO ACT-BUS    Antenna Connector TNC (50 Ω impedance)    Power Supply DC 12~15V    Dimensions (W × H × D) 210 × 44 × 206 mm / 8.3 × 1.7 × 8.1 "    Weight Approx. 1.1 kg / 2.4 lbs      909R Belt PackThe 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.Key Features:• 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.Specs:Frequency Range 5E 480~544 MHz  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 × 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 × H × D) 63 × 82 × 23 mm / 2.6 × 3.2 × 0.9 "    Net Weight Approx. 98 g / 3.5 oz    Transmitter MI-909T    Operating Temperature -10~+60℃