Overview
The MH-4200-072 receiver is an LR-4200-072 with customized programming that incorporates Listen Technologies’ new generation of personal listening products, iDSP or Intelligent Digital Signal Processing.
With Listen’s unique DSP audio processing technology, users experience crystal clear audio that is pleasing to any user, with or without hearing loss. Advanced green battery technology dramatically reduces costs of ownership and hassles while reducing the number of batteries in landfills. A field replaceable Lithium-ion battery is included with the unit. The integrated neck loop / lanyard with DSP loop driver, improves the listening experience for T-coil users. iDSP is the smallest device of its kind, making it easier to wear and easier for venues to dispense, store and maintain.
The MH-4200-072 has an OLED display to program channel names, monitor battery status, channel status, and charge activation. Connect the iDSP neck loop/lanyard or ear phones via two 3.5 mm output jacks (receivers can be shared). The Micro USB connection is used for charging and with the iDSP software suite for programming changes, inventory management and firmware updates.
Includes
One (1) MH-4200-072 Meeting House Receiver (LR-4200-072 with customized settings)*
One (1) Quick Start Guide
*The MH-4200-072 comes with a non-proprietary, field replaceable Lithium-ion battery.
Features
- Integrated neck loop / lanyard with DSP loop driver improves the listening experience for T-coil users
- Smallest device of its kind makes it easier to wear and for venues to dispense, store and maintain
- Can be worn around the neck, with the belt clip, or concealed in a pocket, making it the most discreet listening device on the market
- Advanced green battery technology dramatically reduces costs of ownership and hassles while reducing the number of batteries in the landfill
- Use for single channel applications
Specifications
Audio
|
| System Distortion |
< 2% total harmonic distortion (THD) at 80% deviation |
| Output/s |
Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm |
| System Frequency Response |
50 Hz - 15 kHz (±3 dB) |
| System Signal to Noise Ratio |
SQ enabled 80 dB, SQ disabled 60 dB |
|
Controls
|
| User Controls |
Power, up/down volume |
| Programming |
Via software and USB port |
| Set-up Controls |
Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel |
|
Indicators
|
| LEDs |
Flashes when batteries are low or to indicate charging, solid when fully charged |
| Display |
Channel designation,battery level, unit number, charging status |
|
RF
|
| Frequency Range |
72.0250 - 75.9500 MHz |
| Number of Channels |
17 wide band, 40 narrow band |
| Sensitivity |
.6uV typical, 1 uV maximum for 12 dB sinad |
| Frequency Accuracy |
± .005% stability 32 to 122 ºF (0 to 50 ºC) |
| Squelch |
Programmable in 20 steps, automatic on loss of RF signal |
| Antenna Type |
Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable |
|
Power
|
| Power Supply |
Micro USB connector, 5 V, 500 mA |
| Battery Type |
Lithium Ion 3.7 Vdc, 1200 mAh |
| Battery Life |
8 Hours of continuous use |
| Battery Charging Time |
Fully charged in 2.5 Hours |
|
Physical
|
| Color |
Black |
| Unit Weight with Batteries |
2.40 oz. (68 g) |
| Shipping Weight |
3.20 oz. (91 g) with 1.0 lbs. (454 g) minimum |
| Dimensions (H x W x D) |
3.75 x 2.00 x 0.64 in. (9.6 x 5 x 1.7 cm) |
| Unit Weight |
1.60 oz. (45 g) |
| Dimensions with Belt Clip |
3.75 x 2.00 x 0.80 in. (9.6 x 5.0 x 2.1 cm) |
|
Environmental
|
| Temperature - Operation |
14 to 104 ºF (-10 to 40 ºC) |
| Temperature - Storage |
(-)4 to 122 °F (-20 to 50 °C) |
| Relative Humidity |
0 to 95% relative humidity, non-condensing |
|
Compliance
|
| Standards |
FCC Part 15, Part 90, Industry Canada, RoHS |
|
