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Lectrosonics SMDWB Wideband Beltpack Transmitter - B1 Band

Wideband Wireless Transmitter with Selectable Output Power, Standalone Recorder, and Hands-free Setup and Adjustment Options - B1 Band (537.6 - 614.375MHz)
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Item ID: SMDWB-B1
Lectrosonics SMDWB Wideband Beltpack Transmitter - B1 Band
Price:$1,963 and 00 cents
Special Financing - Ends Aug 2, 2026. $55/month with 36 month financing*

We Can Get It Fast!

While this isn't an item we normally stock, we can still get it to you as fast as possible due to our great relationship with Lectrosonics. Go ahead and place your order and we'll follow up shortly to let you know when to expect it. Estimated May 2026.

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Lectrosonics SMDWB Wideband Beltpack Transmitter - B1 Band
We Can Get It Fast!
Price:$1,963 and 00 cents
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This article was Written By

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Part Wireless Transmitter, Part Recorder

The Lectrosonics SMDWB is a lightweight wireless transmitter solution for film, TV, and any application where discreet transmitter placement is a necessity. This wideband beltpack transmitter has selectable output power to meet the needs of any RF environment. Membrane switches and water-resistant seals make the Lectrosonics SMDWB a must-have for environments where you may encounter water. For situations where RF transmission is problematic, the SMDWB can act as a standalone recorder and capture pristine studio-quality sound on a microSDHC card. Best of all, with the optional LectroRM app for iOS and Android, you can deliver commands to the transmitter wirelessly, which comes in handy when it’s hidden inside costumes. If you need a transmitter that’s useful in a variety of situations, the Lectrosonics SMDWB won’t disappoint.

Use it as a wireless transmitter

By design, the Lectrosonics SMDWB shines as a wireless transmitter. The input selection features servo bias circuitry at the bias input with a standard TA5M jack. It’s great for lavalier mics, dynamic mics, or other line-level signals. The SMDWB is loaded with a DSP-controlled limiter to reduce the chance of overloading the signal. It has an adjustable power output level control to handle whatever range needs arise during a shoot. There’s also a 44dB adjustable gain range with an optional 3dB low-frequency roll-off at one of six selectable frequencies.

Use its onboard recording function

More than an excellent wireless transmitter, the SMDWB can also function as a standalone recorder. With a microSDHC card, the Lectrosonics SMDWB will record studio-quality 24-bit, 44.1kHz uncompressed audio. With a single 8GB card, you can capture up to 11 hours and 12 minutes of audio. Lectrosonics recommends you only use microSDHC cards. Using other card types may result in lost recordings due to incompatible bus structure.

Note: Transmitting and recording functions cannot be used at the same time. Only one mode can be active at a time.

Hands-free setup and adjustment

The LectroRM app for iOS and Android smartphones gives the SMDWB a leg up on the competition. Using the app, you can change select settings on the transmitter with a tone from your phone. Yes, you read that correctly — from your phone. At Sweetwater, we found the Sleep mode to be useful for conserving battery levels when the transmitter is buried deep under a costume or under multiple layers of clothing. Other adjustable parameters include input gain, frequency, RF output power, and low-frequency roll-off. With the expanded functionality provided by the LectroRM app, there’s really nothing you can’t do with the SMDWB.

Lectrosonics SMDWB Beltpack Transmitter Features:

  • Selectable output power lets you maximize your output range
  • Standalone recording function records the entire performance to a microSDHC card
  • DSP-controlled limiter prevents overloads
  • Programmable compatibility modes let you use it with a wide variety of receivers
  • IR port makes pairing fast and easy
  • Optional LectroRM App enables hands-free parameter adjustments
  • Water-resistant seals and membrane buttons are excellent for use in wet environments
  • 2 AA batteries provided
  • Machined metal housing stands up to punishment
  • Low-profile design stays hidden in clothes
Worry-free Wireless!

We wanted you to know that all of the wireless systems you see here – and all of the wireless systems available at Sweetwater – are 100% compliant with the Federal Communication Commission's new rules governing wireless systems. You can be confident that these systems will work within the FCC's currently permitted frequency/power ranges. Please be aware that systems operating in the 617-652 MHz or 663-698 MHz range are now operating outside the FCC's new guidelines. To find out more, visit the FCC's wireless microphone website at  www.fcc.gov/cgb/wirelessmicrophones  or give them a call at (888) CALL-FCC.

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Tech Specs

  • Configuration: Transmitter
  • Compatibility: Lectrosonics Wideband Systems
  • Analog/Digital: Digital
  • Transmitter Frequency Range: 537-614 MHz
  • Form Factor: Bodypack
  • Connector Type: TA5
  • Battery Type: 2 x AA
  • Battery Life: Up to 10 hours
  • Dimensions: 2.3" x 2.4" x 0.6"
  • Weight: 0.23 lbs. (without batteries)
  • Manufacturer Part Number: SMDWB-B1

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