Motorola Two Wire Surveillance Kit PMLN7157
Two-Wire Design • Surveillance Earpiece • In-Line PTT • Discreet & Covert • Motorola Original
The Motorola Two Wire Surveillance Kit PMLN7157 provides discreet, reliable communication for professionals in security, law enforcement, and other demanding industries. Its two-wire design separates the receive and transmit lines — the surveillance-style earpiece tucks the audio out of sight while a clip-mounted microphone and push-to-talk keep transmit control within easy reach. It is a Motorola Original business two-way radio accessory built for clear, covert operations.
Who It's For
Built for security teams, event staff, and plain-clothes personnel who need covert audio on compatible Motorola SL-series and WAVE TLK radios. Want a simpler single-line option? Step down to the PMLN7158 Single Wire Surveillance Kit for lighter-duty discreet use.
Key Features
Two-Wire Design
Separate receive and transmit lines route the earpiece audio and the microphone independently for a cleaner, more discreet fit.
Covert Surveillance Earpiece
The surveillance-style earpiece keeps incoming audio private and out of sight — ideal for security and law-enforcement work.
In-Line Microphone & PTT
A clip-mounted microphone with push-to-talk keeps transmit control discreet and within easy reach during operations.
Motorola Original
A genuine Motorola accessory (part no. PMLN7157) engineered to pair cleanly with compatible Motorola radios.
Compatible Radios
The Motorola PMLN7157 Two Wire Surveillance Kit is designed for Motorola SL-series radios, including the SL300, and for WAVE TLK push-to-talk devices such as the TLK100 and TLK110. If you run a fleet of these radios and need discreet, covert audio for your team, this kit drops straight in.
Prefer a lighter single-wire setup or a different wear style? Compare the PMLN7158 Single Wire Surveillance Kit, the PMLN7159 D-Style Adjustable Earpiece, the PMLN7189 Swivel Earpiece, or the PMLN7156 Earbud — all built for the same SL and TLK radios.
Not sure this kit fits your exact radio model? Our Canadian radio experts can confirm compatibility — call 1-800-984-1534 or contact us before you order.
Shop the PMLN7157 Surveillance Kit →
Frequently Asked Questions About the Motorola PMLN7157
• What is the Motorola PMLN7157 Two Wire Surveillance Kit?
The Motorola PMLN7157 is a two-wire surveillance kit that pairs a discreet, covert surveillance-style earpiece with a separate clip-mounted microphone and in-line push-to-talk. It is built for professionals in security, law enforcement, and other industries who need clear, covert radio communication.
• Which radios are compatible with the PMLN7157?
The PMLN7157 is designed for Motorola SL-series radios such as the SL300 and for WAVE TLK push-to-talk devices including the TLK100 and TLK110. If you are unsure whether it fits your exact model, contact our Canadian team at 1-800-984-1534 to confirm before ordering.
• What does the two-wire design mean?
A two-wire design routes the receive audio and the transmit microphone on separate lines. The surveillance earpiece keeps incoming audio private and out of sight, while the in-line microphone and push-to-talk stay within easy reach — a cleaner, more discreet setup than a single-wire kit.
• Is the PMLN7157 a genuine Motorola accessory?
Yes. The PMLN7157 is a Motorola Original accessory (part no. PMLN7157), engineered to pair cleanly with compatible Motorola radios for reliable, secure communication.
• What is the difference between the PMLN7157 and the PMLN7158 single-wire kit?
The PMLN7157 is a two-wire kit that separates the earpiece and microphone lines for a more discreet fit, while the PMLN7158 Single Wire Surveillance Kit combines them on a single line for a simpler, lighter-duty option. Both deliver discreet surveillance-style audio for compatible Motorola radios.
