Sonim and Klein Electronics Introduce the RESCUE Remote Speaker Microphone

Affordable, Waterproof, Feature-Packed RSM is Backed by 3 Year Warranty

Austin, Texas (Dec. 14, 2021) — Sonim Technologies (Nasdaq: SONM) announced today the launch of the Klein RESCUE waterproof Remote Speaker Microphone (RSM) coming in Q1, 2022. The RESCUE RSM is compatible with Sonim SecureAudio Connector handsets including the XP5s and XP8.

Public safety and industrial workers are challenged with finding rugged audio accessories that are affordable, waterproof and backed by a comprehensive warranty. That’s why Sonim and Klein have teamed up to offer the RESCUE RSM, the most affordable, waterproof RSM with an industry leading 3 year comprehensive warranty, which is now available via leading mobile operators and distributors across the globe.

The RESCUE RSM meets IP-67 standards for waterproof and dust immersion and features a large Push-to-Talk (PTT) button, directional mic for noise cancellation, and headset port for a listen-only earpiece.

In addition, the RESCUE RSM includes an orange programmable emergency button that is linked to the emergency buttons on Sonim ruggedized handsets as well as Sonim SOS, part of SonimWare Enterprise Mobility Software. Sonim SOS is a powerful, free app connected to an easy-to-use alarm key that offers an array of customizable safety-first options to keep workers safe and secure.

“Our collaboration with Klein further illustrates how Sonim is providing customers a full integrated mobility solution with rugged phones, application-specific accessories and software,” said John Graff, Sonim Chief Marketing Officer. “The RESCUE RSM is an affordable solution that is packed with features required by first responders and field workers who need mission critical communications and safety at all times.”

To preorder the RESCUE RSM, visit Sonim Accessories. To see the Klein RESCUE RSM in action, click here.


About Sonim
Sonim Technologies is a leading U.S. provider of ultra-rugged mobility solutions designed specifically for task workers physically engaged in their work environments, often in mission-critical roles. The Sonim solution includes ultra-rugged mobile phones, a suite of industrial-grade accessories, and data and workflow applications which are collectively designed to increase worker productivity, communication and safety on the job site. Please visit

Important Cautions Regarding Forward-Looking Statements
This release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to, among other things, future performance of Sonim’s and its partners’ devices and technologies and continued market acceptance of same.  These forward-looking statements are based on Sonim’s current expectations, estimates and projections about its business and industry, management’s beliefs and certain assumptions made by the Company, all of which are subject to change. Such statements involve risks and uncertainties, which could cause actual results to vary materially from those expressed in or indicated by the forward-looking statements. For a listing of factors that may cause actual results to differ materially, see the potential factors described under “Risk Factors” included in Form 10-K for the year ended December 31, 2020, and other documents on file with the Securities and Exchange Commission (available at Sonim cautions you not to place undue reliance on forward-looking statements, which reflect an analysis only and speak only as of the date hereof. Sonim assumes no obligation to update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this release, except as required by law.

Media Contact
Sue Huss
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