1-Wire Surveillance Kit with Translucent Acoustic Tube

The Motorola 1-Wire Surveillance Kit with Translucent Tube (PMLN8644) is a professional audio accessory designed for discreet, convenient two-way radio communications in security, hospitality, retail, event, and other professional environments. Its streamlined one-wire configuration combines received audio, microphone, and Push-to-Talk (PTT) functionality into a compact surveillance-style accessory that allows users to communicate without repeatedly handling their radio.

The PMLN8644 features a translucent acoustic tube that delivers incoming radio communications directly to the user's ear, providing a discreet listening solution while preventing radio traffic from being broadcast through the radio's external speaker. The clear acoustic tube maintains a low-profile appearance, making the accessory especially useful for employees who work directly with customers, guests, or the general public.

Unlike two-wire and three-wire surveillance kits, the PMLN8644 uses a simplified single-wire configuration. This reduces the amount of cabling worn by the user and makes the accessory easier to route underneath or around uniforms and professional clothing. The result is a clean, practical solution for users who want discreet communications without the additional wiring of more complex surveillance accessories.

An integrated microphone and Push-to-Talk control allows users to transmit without reaching for the radio itself. The radio can remain securely attached to the user's belt or other equipment while the inline controls are positioned in a convenient location for quick access throughout the workday.

The acoustic tube design is particularly valuable in busy environments where users need to clearly monitor radio traffic without disturbing people nearby. Security officers, hotel staff, retail personnel, event teams, and other professionals can receive communications privately while maintaining awareness of their surroundings.

For organizations looking for a straightforward surveillance accessory with minimal cabling, the Motorola PMLN8644 provides an excellent balance of discretion, comfort, and simplicity. Whether outfitting individual users or an entire radio fleet, it provides a professional communications solution for employees who need private received audio and convenient Push-to-Talk operation.

Key Features

• Motorola Professional Surveillance Audio Accessory

• Motorola Part Number: PMLN8644

• 1-Wire Surveillance Kit

• Translucent / Clear Acoustic Tube

• Designed for discreet professional communications

• Private received radio audio

• Streamlined single-wire configuration

• Integrated microphone and Push-to-Talk (PTT) functionality

• Allows remote PTT operation without handling the radio

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

• Low-profile appearance when worn

• Reduced cabling compared with 2-wire and 3-wire surveillance kits

• Easy to route around or underneath professional clothing

• Allows the radio to remain secured while communicating

• Suitable for extended professional use

• Ideal for security and customer-facing environments

• Two-way radio sold separately

One-Wire Design

The PMLN8644 combines the primary audio and communication functions into a streamlined single-wire accessory.

The system provides:

• Translucent acoustic tube for received audio

• Integrated microphone for transmitted voice

• Push-to-Talk control for initiating transmissions

• Single primary cable running to the compatible radio

This simplified design makes the PMLN8644 particularly useful for employees who want discreet communications while minimizing the amount of cabling worn underneath or over their clothing.

1-Wire vs. 2-Wire vs. 3-Wire Surveillance Kits

Motorola's surveillance accessory configurations allow organizations to choose the level of control separation that best fits their employees' needs:

• PMLN8644 – 1-Wire: Streamlined configuration with acoustic tube and integrated microphone/PTT controls

• PMLN8645A – 2-Wire: Acoustic tube plus separate combined microphone/PTT assembly

• PMLN8646A – 3-Wire: Acoustic tube plus independently positioned microphone and PTT controls

The PMLN8644 is the simplest option of the three, making it particularly attractive for everyday commercial applications where users prioritize convenience and minimal cabling.

Ideal Applications

The Motorola PMLN8644 1-Wire Surveillance Kit is ideal for:

• Security Teams

• Hospitality & Hotels

• Retail Operations

• Loss Prevention

• Event & Venue Staff

• Event Security

• Property Management

• Corporate Security

• Schools & Universities

• Healthcare Facilities

• Transportation Operations

• Casinos

• Government Facilities

• Customer-Facing Employees

• Professional Communications Teams

• 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.