Wilson CB Extension Speaker 10W Steel 3.5mm 10ft

Wilson 305600BLK is a rugged external CB extension speaker that delivers clearer, louder audio than most built-in radio speakers.

Upgrading your CB or radio with an external speaker instantly improves intelligibility and volume. The Wilson 305600BLK combines a 22-gauge steel enclosure, a heavy-duty mounting bracket, and a pre-fitted 10-foot cable with a 3.5mm plug so you can position the speaker where it performs best without rewiring. It provides 10 watts of continuous power and up to 20 watts peak, making it suitable for vehicles, workshops, boats, or any setting where the factory speaker falls short.

How does this speaker change the sound compared to an internal radio speaker?

The Wilson extension speaker produces clearer midrange and crisper highs, reducing the muffled quality common in compact internal speakers. Increased cabinet volume and a dedicated driver allow for fuller tone and better projection, so voices and signals cut through background noise.

• 22-gauge steel housing for reduced resonance and cleaner sound
• Dedicated driver tuned for CB/radio voice frequencies
• 10 watts continuous output for steady listening level
• Cleaner articulation of speech and transmissions

What’s included and how easy is it to install?

The speaker arrives ready to mount and connect — no special tools or adapters required for most radios. A heavy-duty black mounting bracket is included so you can fix it to a dash, panel, or bulkhead, and the 10-foot audio cable with a 3.5mm plug reaches most head units or extension jacks without extension cords.

• Pre-attached 10' cable with standard 3.5mm plug for plug-and-play setup
• Matching black steel mounting bracket and hardware included
• Simple single-screw or bolt mount depending on the location
• Works with CB radios and many aftermarket audio devices

Is the speaker durable enough for vehicle or outdoor use?

Constructed from 22-gauge steel and finished in a black coating, the Wilson speaker withstands everyday wear, vibration, and the occasional bump. The robust bracket and secure cable connection help it remain stable under motion, making it appropriate for trucks, off-road vehicles, and other mobile installations.

• 22-gauge steel construction resists denting and vibration noise
• Black finish conceals wear and blends with vehicle interiors
• Heavy-duty bracket keeps the speaker fixed during movement
• Wired connection avoids wireless interference or pairing issues

What power levels and compatibility should I expect?

The unit is rated for 10 watts continuous and up to 20 watts peak, which is ample for CB voice clarity without overdrawing small radio outputs. It uses a standard 3.5mm input, compatible with most CB radios that offer an external speaker jack or with adapters used by many aftermarket head units.

• 10W continuous power for steady listening performance
• 20W maximum handling for brief signal peaks
• Standard 3.5mm plug for wide device compatibility
• Works with most external speaker jacks on CB units

Who is this for? The Wilson 305600BLK is aimed at drivers, hobbyists, and professionals who need clearer radio communications — especially truckers, off-roaders, marine users, and workshop operators. If your built-in speaker sounds thin, struggles with background noise, or can’t be heard at normal operating distances, this compact, hard-mounted external speaker is a straightforward upgrade that improves intelligibility and reliability without complex installation.