Otto 2-Wire Acoustic Tube - Motorola MotoTRBO Multipin

2-Wire Acoustic Tube Surveillance Kit for Motorola MotoTRBO Multipin

Clear tube audio with a quick-swap tip when the tube wears out.

Overview

The LETRBOAT-2W is a professional-grade 2-wire acoustic tube surveillance kit for Motorola MotoTRBO multipin radios, including the XPR and DP series. Genuine Otto acoustic tube design routes sound through a clear tube rather than a speaker sitting in your ear, keeping the ear canal open and comfortable through a long shift.

It's a true 2-wire design with a separate microphone wire, and Otto's quick-disconnect earphone adapter means you can swap a worn tube for a fresh one in seconds rather than replacing the whole kit. Built for security, enforcement, and event teams who need clear, discreet, hands-free audio.

Key Features

• Acoustic tube design means an open ear canal and more comfort over long shifts than an in-ear speaker.
• Quick-disconnect earphone adapter means you can replace a worn or split tube in seconds without buying a whole new kit.
• Separate microphone wire means the mic sits wherever's most comfortable, independent of the earpiece cable.
• Professional-grade Otto build means it's made to handle daily wear in demanding environments.
• Motorola MotoTRBO multipin connector means plug-and-play compatibility with a wide range of MotoTRBO radios, including XPR and DP series, no adapter needed.

Applications

• Security and enforcement
• Event management and production
• Warehousing and logistics
• Hospitality and retail teams
• Construction and facility staff

What's in the Box

• Otto acoustic tube earpiece with quick-disconnect adapter
• Separate in-line lapel microphone with clip and PTT button
• Motorola MotoTRBO multipin connector, ready to plug straight into a compatible handheld

Radio sold separately.

Complete Your Setup

The acoustic tube is the part that wears out first with daily use, but the quick-disconnect design means you don't need a new kit when it does.

• Otto Acoustic Tube Quick Disconnect - Pack of 5, keep spares on hand and swap a worn tube in seconds

Key Specifications

FAQs

Is this the same connector as the GP328 version?
No. This kit uses the Motorola MotoTRBO multipin connector, which is different from the older GP328 multipin. Check your radio model before ordering, the earpiece itself won't plug into the wrong connector type.

What happens when the tube wears out?
Otto's quick-disconnect adapter lets you unclip the old tube and clip in a new one in seconds. Keep a pack of replacement tubes on hand so a worn tube never puts your kit out of action.

Which MotoTRBO radios does this fit?
Any MotoTRBO handheld using the standard multipin accessory connector, including the XPR and DP series.

Do I need a licence to use a surveillance earpiece like this?
No. The earpiece itself is just an audio accessory, it doesn't transmit on its own. Licensing requirements apply to the radio and the frequency it operates on, not to earpieces or microphones.

Is the kit waterproof?
We haven't seen an official water-resistance rating from Otto for this model, so treat it as splash-resistant at best rather than fully waterproof. Get in touch if you need a confirmed IP rating before you buy.