The Listen Tech LR-44 IR Lanyard Receiver is comfortably worn around the neck and earphones are plugged into the receiver. The receiver can receive up to four channels in mono or stereo. It uses standard AAA alkaline batteries for more than 30 hours of use, or a NiMH rechargeable battery pack that delivers 15 hours per charge. The unit features auto shut-off after 30 minutes of no carrier, further extending battery life. The LR-44 boasts high performance audio specs in a small package and is compatible with other manufacturers' products. The LR-44 is used for government compliance (such as ADA), assistive listening, language interpretation, live theatre, houses of worship, courtrooms, secure rooms and for auditory description.
| Carrier Frequencies | 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz |
|---|---|
| Number of Channels | 4 selectable channels |
| IR Detectors | 2 detectors under front IR lens |
| Sensitivity | 1 nW/cm2 at 40 db SNR |
| Frequency Accuracy | +/- .005% stability 0 to 50C |
| Squelch | Automatic on loss of RF signal (40 db SNR) |
| System Frequency Response | 63Hz - 15kHz (+/- 3dB) |
| System Signal to Noise Ratio(A-weighted) | >58dB |
| System Distortion | |
| Audio Output Jacks | 3.5 mm connector unbalanced, mono or stereo headphones |
| Audio Output Power | 20 mW maximum at 32 ohms |
| User Controls | Volume, Power, Channel Select |
| Programming | Channel Lock, Auto Find, Auto Seek, Auto Shut-Off,Audible Option |
| Indicators | Specifications |
| Unit Power | Inicated by current channel selection LED |
| Channel Selection | Red LED illuminates on the current channel selection |
| Audible Indicator | Audio beep in headset indicates low batteries, channel lock, power on/off |
| Battery Type | Two AAA alkaline batteries or NiMH battery pack |
| Battery Life | 30 hours alkaline, 15 hours NiMH rechargeable pack |
| Battery Charging | Fully Automatic with NiMH battery pack and LA-350 charger |
| Temperature - Operation | -10 C (14 F) to +40 (104 F) |
| Temperature - Storage | -20 C (-4 F) to +50 (122 F) |
| Humidity | 0 to 95% relative humidity, non-condensing |
| Color | Dark grey with White Silk Screening |
| Unit Weight without batteries | 1.75 ounces (49 grams) |
| Unit Weight with batteries | 2.55 ounces (74 grams) |
| Dimensions (H x W x D) | 1.8" (46 mm) x 4" (102 mm) x .075" (19 mm) |
| Shipping Weight | 8 ounces (227 grams) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
