Motorola PMMN4046AL Submersible Speaker Mic IMPRES

The Motorola PMMN4046AL IMPRES Remote Speaker Microphone delivers professional-grade audio performance and mission-critical durability for MOTOTRBO and APX radio users operating in the most demanding industrial and public-safety environments. Built around Motorola's IMPRES audio technology, the accessory pairs dual-microphone Industrial Noise Cancellation with Windporting technology to maintain clear, intelligible voice communications even in high-ambient-noise or windy conditions. An IP57 rating confirms full dust protection and submersibility, while TIA4950 intrinsic safety approval qualifies the accessory for use in potentially explosive atmospheres. Operator controls include a programmable orange emergency button, a second programmable side button, and a high/low volume toggle, giving users quick, glove-friendly command over critical functions without accessing the host radio.

Key features & benefits

• IMPRES Audio Technology — Motorola's IMPRES platform optimizes audio output and accessory interaction with compatible radios, delivering enhanced voice clarity in challenging acoustic environments.
• Industrial Noise Cancellation (INC) Dual-Microphone Design — A dual-microphone INC system actively reduces background industrial noise, ensuring transmitted speech remains clear and intelligible even on loud job sites or in heavy machinery environments.
• Windporting Technology — Integrated Windporting suppresses wind noise interference and contributes to the accessory's water-resistant acoustic performance, maintaining communication quality in outdoor or high-airflow conditions.
• IP57 Submersible Rating — Rated IP57, the speaker mic is fully dust-protected and can withstand submersion for up to 30 minutes, making it well-suited for wet, muddy, or washdown-intensive work environments.
• TIA4950 Intrinsic Safety Approval — TIA4950 certification confirms the accessory meets intrinsic safety requirements for use in environments where flammable gases or vapors may be present, a critical qualification for oil, gas, and chemical facilities.
• Programmable Orange Emergency Button — A dedicated, color-coded orange emergency button provides immediate one-touch access to programmed emergency functions, supporting rapid incident response without fumbling for controls.
• Programmable Side Button and Volume Toggle — A second programmable side button and a two-position high/low volume toggle allow users to assign frequently needed functions and adjust speaker output on the fly, reducing reliance on the host radio body.
• Rugged Construction — The enclosure is engineered for continuous use in high-noise, high-exposure industrial settings, complementing the accessory's environmental certifications with physical durability suited to professional field operations.