


2 Year
$119.99
3 Year
$154.99
5 Year
$269.99
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Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
Browse our FAQ
Band B1: 537.600 - 614.375 MHz
25 kHz or 100 kHz, selectable; VHF: 125 kHz
1 uv (20 dB SINAD)
95 dB A-weighted
90 dB
50 dB, 10 uV to 100 mV
+/-20 kHz
Greater than 70 dB
-4 degree to 113 degree F (-20 to 45 degrees C)
0 dBm
100 Hz to 10 kHz, (+/-1 dB)
1V RMS into 50 ohms minimum
Headphone cable
16.0 Ohms
10 frequencies can be stored as presets
Top Panel: Single knob controls Audio Output Level and Power On
Side Panel: Membrane switches with LCD interface for Frequency Selection and Preset function
Multi-color LED indicator for power on and battery status
LB-50 Li-ion 3.6 V 1000 mAh
8 hours per charge with LB-50 Li-ion battery
120 mA
2.8 x 2.4 x 0.8" (71.1 x 70.0 x 20.3mm)
3.4 oz (96.39g) (with battery and wire belt clip)
Discover the advanced IFBR1B-B1 UHF Multi-Frequency Belt-Pack IFB Receiver with Charger, a high-tech solution for professional audio and video applications. This sophisticated device is an integral part of wireless IFB (interruptible fold back) systems, commonly used for talent cueing and crew communications in broadcast and motion picture production.
This innovative receiver is not only user-friendly but also offers exceptional performance, living up to the high standards set by all of Lectrosonics' IFB products. Despite its compact size, it utilizes +/-20 kHz FM deviation for efficient bandwidth use and features compandor noise reduction circuitry, ensuring an excellent signal-to-noise ratio.
The IFBR1B-B1 receiver is equipped with a supersonic Pilot Tone signal that controls the audio output squelch, maintaining silence when no transmitter signal is received. The incoming RF signal undergoes filtration and amplification before being mixed down to the IF frequency by a microprocessor-controlled synthesizer.
Designed for versatility, this receiver automatically accommodates a monaural earpiece connection without any loss of audio output power or battery life. The headphone cable doubles as the receiving antenna, and the receiver can drive a wide variety of earbuds, headphones, and induction neck loops, accommodating loads from 16 Ohms to 600 Ohms.
Battery installation is a breeze with an attached sliding door, and the receiver operates on a single 3.6 V rechargeable LB50 Li-ion battery, providing approximately eight hours of operation per charge. An LED indicator changes color from green to red as the battery voltage declines, giving ample warning before operation ceases.
The IFBR1B-B1 receiver is housed in a rugged machined aluminum package for durability. A wire belt clip is included for secure mounting on a wide variety of belts, pockets, and fabrics. Plus, a USB port is conveniently located inside the battery door for easy firmware updates in the field. Experience the difference with the IFBR1B-B1 UHF Multi-Frequency Belt-Pack IFB Receiver with Charger, a testament to Lectrosonics' commitment to quality and reliability.