2-Wire Surveillance Kit with Translucent Acoustic Tube

The Motorola 2-Wire Surveillance Kit with Translucent Tube (PMLN8645A) is a professional audio accessory designed for discreet two-way radio communications in environments where privacy, mobility, and low-profile operation are important. Featuring a two-wire configuration with a translucent acoustic tube earpiece and a separate combined microphone/Push-to-Talk (PTT) assembly, the PMLN8645A allows users to hear radio traffic privately and communicate without repeatedly handling their radio.

The two-wire design separates received audio from the microphone and Push-to-Talk controls, providing a practical balance between discretion and simplicity. One wire connects to the acoustic tube earpiece for private listening, while the second leads to the combined microphone/PTT assembly. This configuration allows the controls to be positioned conveniently on the user's clothing while the radio remains secured to a belt or other equipment.

A translucent acoustic tube routes incoming radio communications directly to the user's ear, helping prevent conversations from being broadcast through the radio's external speaker. The low-profile clear tube is particularly well suited for employees working around customers, guests, crowds, or the general public where discreet communications are preferred.

The combined microphone and PTT assembly allows users to transmit quickly without reaching for the radio itself. With the microphone and Push-to-Talk control integrated into a separate wire from the earpiece, users can position the control in a convenient location for fast access while keeping the acoustic tube securely positioned at the ear.

Compared with a three-wire surveillance kit, the PMLN8645A provides a simpler configuration by combining the microphone and PTT into a single assembly. This reduces the amount of cabling the user needs to manage while still providing considerably more discreet operation than a conventional speaker microphone or radio-mounted speaker.

Whether used by security teams, hospitality personnel, event staff, property management, or other professionals who need private and convenient radio communications, the Motorola PMLN8645A provides a purpose-built two-wire surveillance solution for demanding professional environments.

Key Features

• Motorola Professional Audio Accessory

• Motorola Part Number: PMLN8645A

• 2-Wire Surveillance Kit

• Translucent / Clear Acoustic Tube

• Designed for discreet two-way radio communications

• Private received radio audio

• Separate acoustic tube earpiece wire

• Combined Microphone and Push-to-Talk (PTT) assembly

• Allows convenient remote PTT operation

• Low-profile appearance when worn

• Helps prevent radio traffic from being broadcast through the radio speaker

• Allows the radio to remain secured while communicating

• Less cabling than a three-wire surveillance configuration

• Suitable for extended professional use

• Ideal for customer-facing and security environments

• Two-way radio sold separately

Two-Wire Design

The PMLN8645A separates its communication functions across two wires:

• Earpiece Wire – Routes incoming radio communications to the translucent acoustic tube for discreet listening.

• Microphone/PTT Wire – Combines the microphone and Push-to-Talk control into a convenient assembly that can be positioned on the user's clothing.

This configuration provides an excellent middle ground between the simplicity of a one-wire earpiece and the greater component separation of a three-wire surveillance kit.

2-Wire vs. 3-Wire Surveillance Kits

The PMLN8645A 2-Wire Surveillance Kit combines the microphone and PTT into one assembly, making it a strong choice for users who want discreet operation without managing three separate cables.

For users who require the microphone and PTT to be positioned independently, the corresponding three-wire configuration, PMLN8646A, may be the better option.

• PMLN8645A – 2-Wire: Acoustic tube + combined microphone/PTT

• PMLN8646A – 3-Wire: Acoustic tube + separate microphone + separate PTT

Ideal Applications

The Motorola PMLN8645A 2-Wire Surveillance Kit is ideal for:

• Security Teams

• Corporate Security

• Hospitality & Hotels

• Event Security

• Event & Venue Staff

• Casinos

• Retail & Loss Prevention

• Property Management

• Schools & Universities

• Healthcare Facilities

• Transportation Operations

• Government Facilities

• Professional Communications Teams

• Customer-Facing Employees

• Environments Requiring Discreet Radio Communications

Why Buy from Delmarva Communications?

Delmarva Communications provides genuine Motorola Solutions two-way radios, accessories, replacement parts, and complete communication solutions backed by expert support. Our experienced team can assist with radio programming, system design, FCC licensing guidance, fleet management, repair, and ongoing technical support to help your organization maximize the performance and reliability of your communication system.