Retevis MB2 40-Channel AM/FM CB Radio Kit - Long Range and VOX

In this review of the Retevis MB2 40-Channel AM/FM CB Radio Kit, the bottom line is simple: this is a compact, feature-packed fixed-mount CB built for drivers and small fleet users who need flexible long-range communication and hands-free convenience. Its main selling point is the combination of AM for extended range and FM for clearer audio, packaged with useful extras like VOX hands-free, a dedicated EMG key for channels 9 and 19, and multiple squelch modes that keep transmissions intelligible on the road.

Key Features

• AM/FM modes: Choose AM for longer-distance contacts and FM for clearer, crisper audio depending on range and interference conditions.
• Instant EMG channels: The EMG key switches directly to channel 9 or 19 so users can access emergency or highway channels without scrolling.
• Squelch control: ASQ and SQ modes reduce background noise so transmissions come through cleaner for both sending and receiving.
• VOX hands-free: The VOX function allows voice-activated transmit so drivers can speak without holding the microphone, improving safety and convenience.
• Portable fixed-mount design: Compact dimensions and included accessories make it straightforward to install and carry between vehicles if needed.
• External speaker port: A 3.5mm output lets you add a louder speaker for clearer monitoring in noisy cabins.

Who It's For

The Retevis MB2 is aimed at truckers, delivery drivers, and hobbyists who want an affordable fixed-mount CB with practical features for on-the-road use. Its mix of AM and FM modes and the EMG shortcut make it especially useful for drivers who switch between long-range and local comms often.

Less suitable users include those after professional base-station gear with advanced tuning or commercial radios that require certified high-power output; this kit is positioned as a compact, value-focused CB rather than high-end enterprise hardware.

Pros & Cons

Pros

• Compact size that installs easily and saves dash space.
• Clear audio and useful squelch modes that cut background noise for better reception.
• VOX hands-free operation and a dedicated EMG key improve in-vehicle safety and convenience.
• Includes antenna and accessories for quick installation and longer-range communication.

Cons

• Some users report mixed feedback on raw functionality compared with more expensive models; this unit targets value over professional-grade performance.

Specifications

Channels	40
Modes	AM/FM
Size	185x124x38mm (7.28x4.88x1.50in)
Hands-free	VOX supported
Emergency channels	Channels 9 and 19 (EMG key)
External speaker	3.5mm port
Additional features	ASQ/SQ squelch, RB 6 roger beeps, key lock

Our Verdict

The Retevis MB2 is a good value CB radio for drivers who need flexible AM/FM operation, hands-free VOX, and quick access to emergency channels. It balances compact size and practical features, making it a sensible choice for truckers and casual users who want reliable in-vehicle communication without paying for premium base-station gear.

Frequently Asked Questions

Does this radio support hands-free operation?
Yes. The MB2 includes VOX voice-activated transmit so you can talk without holding the mic.

Can I use an external speaker?
Yes. There is a 3.5mm port for connecting an external speaker to increase volume in loud cabins.

How do I access emergency channels quickly?
Use the EMG key to switch instantly to channels 9 or 19 for emergency or highway communications.