Retevis RB48 Plus Waterproof Heavy Duty Walkie Talkies

Description
Spec
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Description

Retevis RB48 Plus GMRS Waterproof Heavy Duty Walkie Talkies

The Retevis RB48 Plus is a 5W GMRS waterproof walkie talkie built for tough work: an upgraded version of the RB48 with IP67 waterproof and dustproof protection, a 2m drop-proof shell tested with 1,000 drops, and dual PTT buttons you can operate with gloves on. With up to 3-5 km of range and an 18-hour battery, this heavy duty two way radio keeps construction crews, warehouse teams, farms, and security staff connected across large sites — even in rain, dust, and drops.

Retevis RB48P GMRS Waterproof Heavy Duty Walkie Talkies

Key Features

3-5 KM Long Range for Large Job Sites, Farms and Multi-Story Buildings

The Retevis RB48 Plus GMRS walkie talkie has a maximum transmission power, making it a long-range two way radio. It offers a call distance of 30000sq.m, 30 floors, or 3-5KM, keeping constant calls even when you are away.

Retevis RB48 Plus 5W GMRS heavy duty walkie talkie with long range

2000mAh Battery — Up to 18 Hours of Talk Time on a Single Charge

The Retevis RB48 Plus high power walkie talkie features a built-in 2000mAh battery, allowing continuous use for up to 18 hours. It supports type-C charging and charge stations. Power saving function can extend the life of your batteries.

Retevis RB48 Plus heavy duty walkie talkie with 2000mAh battery and USB Type-C charging

IP67 Waterproof, Dustproof & 2m Drop-Proof — Tested with 1,000 Drops

Retevis RB48 Plus GMRS 2-way radio features advanced triple proof. It is IP67 waterproof and dustproof, resistant to 0.1μm dense dust; drop proof from a height of 2 meters; has passed 1000 drops from 2 meters without breaking; and is designed for harsh conditions. Retevis RB48 Plus long range walkie talkie is made of PC + TPE material, making it sturdy and durable.

Retevis RB48 Plus rugged IP67 waterproof walkie talkie for construction sites

Dual PTT Buttons — Full Operation with Gloves On

The Retevis RB48 Plus durable two way radio features an oversized button on the front and a side PTT. Designed with a large PTT button, the Retevis RB48 Plus shock-resistant radio allows for convenient two way radio operation even while wearing gloves.

Retevis RB48 Plus long range walkie talkie with dual PTT buttons for gloved hands

One-Key Group Call for Team Coordination

No matter your channel, the one key group call function helps you quickly achieve team communication and increase communication and work efficiency.

Retevis RB48 Plus IP67 two way radio with one-key group call for work crews

Vibration Alert for Noisy Job Sites

Even in a particularly noisy work environment, the RB48 Plus waterpoof walkie talkie provides vibrate reminders to ensure that communications are received in time. You won't miss or lose important messages.

Retevis RB48 Plus waterproof two way radio with vibration alert for noisy job sites

VOX Hands-Free Operation (0–9 Sensitivity Levels)

The Retevis RB48 Plus heavy duty walkie talkie has a 0-9 VOX Level. There is no need always to press the PTT key, the VOX hands free of the Retevis RB48 Plus waterproof radio increases communication efficiency by talking directly when your hands are unavailable.

Repeater-Capable — Pair with a GMRS Repeater to Extend Range

Retevis RB48 Plus advanced triple proof 2-way radio has relay channels. The relay channels efficiently extend the call distance by connecting to the base station.

Retevis RB48 Plus GMRS radio with repeater channels to extend range

LCD Display

The Retevis RB48 Plus with screen helps users check the working status of two way radio. Its three backlight colors refer to different statuses. The red is transmitting, the blue is receiving, and the purple is on standby.

Retevis RB48 Plus GMRS walkie talkie with tri-color backlit LCD display

2.5mm Single-Pin Jack — Works with RB48 Series Earpieces & Speaker Mics

Compatible with the earpiece and speaker microphone of RB48 two-way radios, it features a 2.5mm single-pin connector.

Retevis RB48 Plus 5W two way radio with 2.5mm single-pin earpiece jack

Battery Save Mode for Long Shifts

If you open RB48 Plus IP67 waterproof walkie talkie battery save mode, it can reduce battery power consumption, and conserve the battery power for a longer battery life.

Two Ways to Charge — USB Type-C & Desktop Charging Base

The Retevis RB48 Plus drop-proof radio has two charging methods,type-C charging and desktop charging. You can flexibly and conveniently choose the charging method to charge the walkie talkie for longer work time.

Anti-Slip, Rugged PC+TPE Shell Built for Harsh Conditions

Retevis RB48 Plus long range radio uses an anti-slip design, which reduces the damage to the walkie talkie because of slipping during use. It increases the stability and durability of two way radio.

Local & Remote Emergency Alarm for Worker Safety

The emergency alarm of the Retevis RB48 Plus anti-slip radio helps ensure your safety. Retevis RB48 Plus 2-way radio has two alarm modes, remote and local Alarm. In emergencies, long press the alarm key to turn on the alarm function to seek help.

RB48 Plus (GMRS) vs RB48 (FRS): Which One Does Your Team Need?

Spec

Mode	RB48 Plus
Frequence Band	GMRS
Transmit Frequency（TX）	UHF: 462-467MHz
Receive Frequency(RX)	UHF: 462-467MHz
Power	5W/0.5W
Channel Number	30
Channel display	Channel Number
Waterproof Rating	IP67
Bluetooth	/
Location	/
Battery Capacity	2000mAh
Operation Temperature	-10°C to 60°C
Encryption Type	50 CTCSS/105 DCS
Call Types	Group Call
Display	LCD
Wireless Copy	/
NOAA	Y
Emergency Alarm	Local+Remote
Lone work	/
Man Down	/
Weight	265.7g
Size	205.553360.5mm
Type-C Charging	Y
Additional Features	1.Scan； 2.VOX； 3.VOX Delay； 4.English Broadcasting； 5.Busy Channel Lockout； 6.Low Battery Alert； 7.Power save mode； 8.Monitor； 9.TOT； 10.Companding； 11.Channel Hiding Function； 12.CTCSS/DCS Canceled/Restored； 13.Channel and Keypad Lock； 14.Reset to Factory Mode； 15.SQL； 16.Roger Beep； 17.Call Ring； 18.MIC Gain； 19.Talk Around； 20.TX Tone Enable； 21.Backlight Time； 22.Easy Pairing；

RB48 Plus Specification

General
Frequency Range	GMRS
Rated Voltage	DC 7.4V
Memory Channel	30
Antenna	Built-in Antenna
Antenna Impedance	50Ω
Working Methods	Simplex /repeat frequency mode
Grounding Methods	Negative Electrode
Dimension	205.55 33 60.5mm（including antenna）
Receiver
Sensitivity	0.25uV/-119dBm（12dB SINDA）
Audio Power	≥500mW
Audio Distortion	≤3%
Receiving Current	≤410mA
Transmitter
Modulation Mode	FM (F3E)
Maximum Frequency Deviation	≤2.5KHz
Transmitting Current	≤1.7A

Features

30 Channels

IP67 Waterproof&Dust proof

2000mAh Battery

Shock Resistance

Scan Function

VOX Function

VOX Delay

English Broadcasting

Busy Channel Lockout

Low Battery Alert

Power save mode

High/Low power

50 CTCSS/105 DCS-N/4 DSC-I

Monitor

TOT

Companding

Channel Hiding Function

CTCSS/DCS Canceled/Restored

Channel and Keypad Lock

Reset to Factory Mode

NOAA

SQL

Roger Beep

Call Ring

SOS

MIC Gain

Talk Around

TX Tone Enable

Backlight Time

Group Call

Easy Pairing

FAQ

Yes. The RB48 Plus carries an IP67 rating: it is fully dust-tight (against 0.1μm dense dust) and can withstand 1 meter of water for 30 minutes. It has also passed 1,000 drop tests from 2 meters, so rain, splashes, and brief submersion on the job site or on the water won't stop it.

The RB48 Plus operates on GMRS (UHF 462-467 MHz). In the United States, GMRS requires an FCC license — there is no exam, and one license covers you and your immediate family. If you need a fully license-free option, choose the Retevis RB48 FRS version instead. Regulations vary by country, so please check your local rules before transmitting.

In open conditions with the 5W GMRS power, the RB48 Plus reaches up to 3-5 km, or coverage of about 350,000 sq. ft. / 30 floors. Real-world range depends on terrain, buildings, and weather. For larger properties or multi-building sites, the RB48 Plus has relay channels and can work through a GMRS repeater (such as the Retevis RT97) to extend coverage significantly.

The built-in 2000mAh Li-ion battery delivers up to 18 hours of typical use on a single charge. You can charge two ways: directly via USB Type-C, or on the desktop charging base. Battery Save mode further reduces consumption for long shifts.

The RB48 Plus uses a 2.5mm single-pin connector and is compatible with earpieces and speaker microphones made for the Retevis RB48, RT49, RT49B, and RT49P two way radios. Matching accessories include the RTC48P six-unit and RTC48T ten-way multi chargers, desktop charging base, and spare belt clips — ideal for outfitting a whole crew.

Both are IP67 waterproof heavy duty radios, but the RB48 Plus runs on GMRS with 5W max power for stronger penetration and longer range, while the RB48 FRS version is license-free in the US at lower power. Choose the RB48 Plus if you need maximum range on a large property (and can hold a GMRS license); choose the RB48 FRS if you want zero paperwork for family, event, or small-team use.

Yes — it is built for exactly that. The PC+TPE shell is IP67 waterproof and dustproof and has survived 1,000 drops from 2 meters. The oversized front PTT plus a side PTT let you transmit with gloves on, the vibration alert ensures calls get through in noisy environments, and the local + remote emergency alarm adds a layer of worker safety.

Yes. The RB48 Plus includes dedicated relay channels, so it can communicate through a GMRS repeater such as the Retevis RT97. This is the recommended way to cover large farms, ranches, campuses, or multi-building job sites where handheld-to-handheld range is not enough.

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International delivery time - 7-10 business days
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