Motorola PMLN7158 Single Wire Surveillance Kit
Single-Wire Design • In-Line Microphone • In-Line PTT • Clear Acoustic Tube • Rubber Eartip
The Motorola PMLN7158 Single Wire Surveillance Kit is an enhanced one-wire surveillance earpiece with an in-line microphone and push-to-talk, built for discreet, covert communication. Its clear acoustic tube and soft rubber eartip keep audio private and comfortable through long shifts — an ideal pick for security, retail loss prevention, hospitality, and event staff who need a low-profile audio accessory. Browse the full lineup of business two-way radios to match it to your fleet.
Who It's For
Best for users who want a discreet single-wire earpiece for SL300, TLK100, and TLK110 radios. Need an in-ear earbud instead? See the PMLN7156 Earbud with In-Line PTT. Prefer a two-wire setup for higher noise environments? Step up to the PMLN7157 Two Wire Surveillance Kit.
Key Features
Enhanced Single-Wire Design
A clean one-wire layout routes cleanly under a collar or behind a lapel for a discreet, professional look on the job.
In-Line Mic & PTT
An in-line microphone and push-to-talk switch let you transmit without reaching for the radio — ideal for hands-busy roles.
Clear Acoustic Tube
A clear, low-visibility acoustic tube delivers audio quietly to your ear for genuinely covert communication.
All-Day Comfort
A soft rubber eartip keeps the PMLN7158 comfortable across a full shift, so it stays easy to wear during extended use.
Compatible Radios
The Motorola PMLN7158 Single Wire Surveillance Kit is designed for Motorola SL300, WAVE TLK100, and TLK110 radios. If you're not certain the PMLN7158 fits your specific radio, our Canadian team can confirm compatibility before you order — call 1-800-984-1534 or contact us.
Comparing covert audio options? Also consider the PMLN7159 D-Style Adjustable Earpiece and the PMLN7189 Swivel Earpiece, or explore the full range of commercial two-way radios.
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Frequently Asked Questions About the Motorola PMLN7158 Single Wire Surveillance Kit
• What is the Motorola PMLN7158 Single Wire Surveillance Kit?
The PMLN7158 is an enhanced one-wire surveillance kit with an in-line microphone and push-to-talk, plus a clear acoustic tube and rubber eartip. It delivers discreet, covert audio for users who need to stay low-profile on the job.
• Which radios is the PMLN7158 compatible with?
The Motorola PMLN7158 Single Wire Surveillance Kit is designed for Motorola SL300, WAVE TLK100, and TLK110 radios. If you're unsure whether it fits your radio, contact our team or call 1-800-984-1534 to confirm before ordering.
• What is the difference between the single-wire PMLN7158 and the two-wire PMLN7157?
The PMLN7158 uses a single-wire design with the microphone and PTT in one in-line run, while the PMLN7157 Two Wire Surveillance Kit separates the audio and mic/PTT into two wires. Many security teams prefer the two-wire layout for higher-noise environments; the single-wire PMLN7158 is lighter and simpler.
• Is the PMLN7158 comfortable for extended wear?
Yes. The PMLN7158 uses a clear acoustic tube and a soft rubber eartip designed for comfort during long shifts, making it well suited to all-day security, retail, and event work.
