Retevis RB48D DMR Walkie Talkie with AI Noise Reduction and IP67 Protection
Retevis RB48D is an industrial-grade DMR digital two way radio from the RB48 series. It adopts DMR system with AI noise reduction, equipped with 512 channels and 16 zones, plus ARC4, AES128 & AES256 encryption for secure communication. Built with IP67 waterproof and dustproof rugged housing, it stably works at temperatures ranging from -30℃ to 60℃. It also retains classic practical designs including dual PTT buttons, VOX hands-free operation and long battery life. Additionally, the RB48D supports CPS software for preset message storage to recall it instantly on site. Ideal for high-rise construction sites and on-site team work, this digital walkie talkie delivers clear, anti-interference and reliable all-day onsite communication.

5W UHF Power for Coverage Across Large Industrial Sites
Boasting powerful 5W output, RB48D delivers strong signals and extensive coverage, keeping you seamlessly connected across sprawling large construction sites.

AI Noise Reduction for Loud Job Sites
Machinery, impact noise and crowd chatter drown out the words that matter on a busy site. The RB48D's AI noise reduction isolates the human voice from that background so instructions come through on the first attempt — whether your team is working beside a running engine, in a packed venue, or out on the apron where equipment noise never stops.

DMR Digital and Analog Dual Mode Communication
Compared with analog radios, DSP digital processing provides noise reduction, error correction, and clearer voice quality, ensuring more stable communication performance in complex environments.

Dual Mode Communication
The RB48D enables quick switching between DMR Digital and Analog working modes to meet diverse communication demands across various work sites without format limitations. DMR digital technology provides clearer voice quality, while analog mode maintains compatibility with existing radio systems.

IP67 Waterproof, Dustproof and Drop Resistant Housing
IP67-rated waterproof and dustproof design provides protection against water immersion up to 1m for 30 minutes and dust particles, ensuring dependable operation in challenging industrial environments.

Rugged PC and TPE Housing Built for Harsh Sites
PC and TPE housing combines strength, durability, and impact resistance, helping the radio withstand daily drops, bumps, and demanding job site conditions for reliable long-term use.

Wide Temperature Range from -30C to 60C
As Retevis's first industrial-grade digital two way radio, RB48D is designed for reliable performance in extreme conditions. It supports stable operation across a wide temperature range of -30℃ to 60℃, making it fully suitable for a variety of industrial work environments.

Up to 14 Hours of Talk Time on a Single Charge
A 2000mAh battery delivers at least 14 hours of continuous talk time and over 30 hours of standby, so a single charge covers a full shift without a mid-day battery swap. Teams running double shifts or outdoor sites with no reliable power can top up over USB Type-C or drop the radio onto a desktop charging base.

512 Channels, 16 Zones and 128 Contacts for Large Teams
With 16 zones, 512 channels, and storage for up to 128 contacts, the RB48D provides flexible communication management for large teams and multiple work groups, making it easier to organize and coordinate complex operations.

One-Touch Single, Group and All Call Modes
Multiple calling modes including single call, group call, and all call enable fast communication with specific users, selected team members, or the entire team.

AES256 Encryption for Confidential Work Traffic
Not every conversation on site should be overhead. The RB48D offers ARC4, AES128 and AES256 encryption so security, management and event teams can choose the protection level their traffic requires, from routine coordination to confidential operations. When existing Motorola radios use the same encryption mode, the RB48D interoperates with them normally — a practical route for teams phasing in new radios without replacing a working fleet.

Multi-Layer Charging Protection with 5V/1A and 5V/2A Support
The RB48D is compatible with both 5V/1A and 5V/2A charging specifications. Its built-in charging protection system with low voltage, overcurrent, overvoltage, and temperature protection helps prevent charging risks and ensures safe, reliable power management during daily operation.

Man Down Alert for Lone Workers and High Risk Tasks
Tailored for high-risk work scenarios, RB48D features a man-down alert system. It detects abnormal tilting via angle sensing and automatically triggers alarms to promptly alert teammates when workers fall down. It also supports multiple customizable alert methods such as private alert and voice alerts, providing enhanced safety protection during operations.

VOX Hands-Free and Dual PTT for Gloved Operation
Equipped with VOX hands-free voice activation and dual PTT buttons. You can talk without pressing keys, and trigger transmission conveniently from multiple angles amid busy onsite work.

Reliable Communication, Built for Demanding Worksites
The Retevis RB48D is an industrial DMR walkie talkie for teams that cannot afford to mishear. AI noise reduction filters out machinery and crowd noise to pull the human voice forward. IP67 waterproofing and a rugged shell survive rain, dust and drops, and -30C to 60C operation covers freezing sites. 512 channels, AES256 encryption and a man down alert suit construction and security crews.



Retevis RB48D DMR Walkie Talkie with AI Noise Reduction and IP67 Protection
Retevis RB48D is an industrial-grade DMR digital two way radio from the RB48 series. It adopts DMR system with AI noise reduction, equipped with 512 channels and 16 zones, plus ARC4, AES128 & AES256 encryption for secure communication. Built with IP67 waterproof and dustproof rugged housing, it stably works at temperatures ranging from -30℃ to 60℃. It also retains classic practical designs including dual PTT buttons, VOX hands-free operation and long battery life. Additionally, the RB48D supports CPS software for preset message storage to recall it instantly on site. Ideal for high-rise construction sites and on-site team work, this digital walkie talkie delivers clear, anti-interference and reliable all-day onsite communication.

5W UHF Power for Coverage Across Large Industrial Sites
Boasting powerful 5W output, RB48D delivers strong signals and extensive coverage, keeping you seamlessly connected across sprawling large construction sites.

AI Noise Reduction for Loud Job Sites
Machinery, impact noise and crowd chatter drown out the words that matter on a busy site. The RB48D's AI noise reduction isolates the human voice from that background so instructions come through on the first attempt — whether your team is working beside a running engine, in a packed venue, or out on the apron where equipment noise never stops.

DMR Digital and Analog Dual Mode Communication
Compared with analog radios, DSP digital processing provides noise reduction, error correction, and clearer voice quality, ensuring more stable communication performance in complex environments.

Dual Mode Communication
The RB48D enables quick switching between DMR Digital and Analog working modes to meet diverse communication demands across various work sites without format limitations. DMR digital technology provides clearer voice quality, while analog mode maintains compatibility with existing radio systems.

IP67 Waterproof, Dustproof and Drop Resistant Housing
IP67-rated waterproof and dustproof design provides protection against water immersion up to 1m for 30 minutes and dust particles, ensuring dependable operation in challenging industrial environments.

Rugged PC and TPE Housing Built for Harsh Sites
PC and TPE housing combines strength, durability, and impact resistance, helping the radio withstand daily drops, bumps, and demanding job site conditions for reliable long-term use.

Wide Temperature Range from -30C to 60C
As Retevis's first industrial-grade digital two way radio, RB48D is designed for reliable performance in extreme conditions. It supports stable operation across a wide temperature range of -30℃ to 60℃, making it fully suitable for a variety of industrial work environments.

Up to 14 Hours of Talk Time on a Single Charge
A 2000mAh battery delivers at least 14 hours of continuous talk time and over 30 hours of standby, so a single charge covers a full shift without a mid-day battery swap. Teams running double shifts or outdoor sites with no reliable power can top up over USB Type-C or drop the radio onto a desktop charging base.

512 Channels, 16 Zones and 128 Contacts for Large Teams
With 16 zones, 512 channels, and storage for up to 128 contacts, the RB48D provides flexible communication management for large teams and multiple work groups, making it easier to organize and coordinate complex operations.

One-Touch Single, Group and All Call Modes
Multiple calling modes including single call, group call, and all call enable fast communication with specific users, selected team members, or the entire team.

AES256 Encryption for Confidential Work Traffic
Not every conversation on site should be overhead. The RB48D offers ARC4, AES128 and AES256 encryption so security, management and event teams can choose the protection level their traffic requires, from routine coordination to confidential operations. When existing Motorola radios use the same encryption mode, the RB48D interoperates with them normally — a practical route for teams phasing in new radios without replacing a working fleet.

Multi-Layer Charging Protection with 5V/1A and 5V/2A Support
The RB48D is compatible with both 5V/1A and 5V/2A charging specifications. Its built-in charging protection system with low voltage, overcurrent, overvoltage, and temperature protection helps prevent charging risks and ensures safe, reliable power management during daily operation.

Man Down Alert for Lone Workers and High Risk Tasks
Tailored for high-risk work scenarios, RB48D features a man-down alert system. It detects abnormal tilting via angle sensing and automatically triggers alarms to promptly alert teammates when workers fall down. It also supports multiple customizable alert methods such as private alert and voice alerts, providing enhanced safety protection during operations.

VOX Hands-Free and Dual PTT for Gloved Operation
Equipped with VOX hands-free voice activation and dual PTT buttons. You can talk without pressing keys, and trigger transmission conveniently from multiple angles amid busy onsite work.

Reliable Communication, Built for Demanding Worksites
The Retevis RB48D is an industrial DMR walkie talkie for teams that cannot afford to mishear. AI noise reduction filters out machinery and crowd noise to pull the human voice forward. IP67 waterproofing and a rugged shell survive rain, dust and drops, and -30C to 60C operation covers freezing sites. 512 channels, AES256 encryption and a man down alert suit construction and security crews.


