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Description

Retevis RB648 Plus & TR637: A Complete Jobsite Radio Bundle

The RB648P and TR637 bundle covers both halves of a working site: heavy-duty communication and crew-wide sound. The RB648P is a 5W UHF triple-proof walkie talkie with an IP54 speaker mic, while the TR637 adds Bluetooth streaming, AM/FM, and big sound for breaks and broadcasts. One kit, built for construction sites, farms, and warehouses.

Features

Long Range Communication

With a maximum 5W transmission power, the RB648P is a long-range UHF heavy duty two way radio. Expect coverage of about 30 floors or 3-5 km, keeping constant calls between crews even on spread-out sites.

Retevis RB648P long range UHF communication on the jobsite

2000mAh Li-ion large capacity battery

The built-in 2000mAh battery runs up to 18 hours of continuous use - multi-shift work without a midday swap. Type-C charging and charging stations are both supported, and battery save mode stretches every charge further.

Advanced Triple Proof

The RB648P is rated IP67 waterproof and dustproof, sealed against 0.1μm dense dust and drop-tested from 2 meters - 1,000 drops without failure. Its PC + TPE shell shrugs off rain, mud, and rough handling on the harshest sites.

Dual PTT Buttons

An oversized front PTT plus a side key means gloved hands always reach a talk button. Foremen can keep the radio holstered and still transmit instantly - no fumbling, no missed calls.

Retevis RB648P dual PTT buttons for gloved hands

P54 Speaker Mic Kit

The HS001 1-pin 2.5mm shoulder speaker mic pairs a quality microphone with a large speaker for clear audio. Its IP54 housing handles rain and dust, the rotatable back clip attaches to collars and safety vests, and long shifts stay comfortable.

One-key Group Call

No matter which channel you are on, one key opens a group call to the whole team. Faster rollouts, quicker help, and fewer repeated instructions across the site.

Retevis RB648P one-key group call function

Vibration Reminder

In loud, boisterous environments the RB648P vibrates on incoming calls, so messages get through even when the speaker cannot be heard. No more missed or lost instructions.

VOX Hands-free 

A 0-9 level VOX transmits as soon as you speak - no PTT press needed. Hands stay free for tools, wheelbarrows, and steering wheels while communication keeps flowing.

Retevis RB648P VOX hands-free operation

Relay Channels

Relay channels extend call distance by connecting through a base station or repeater, so far corners of large properties stay within reach without extra handhelds.

LCD Display

The RB648 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.

Battery Save

The RB648 Plus features a battery save mode that intelligently reduces power consumption during standby, helping conserve battery power and extend battery life. In long shifts or outdoor work environments, it reduces the need for frequent charging and keeps teams connected with reliable, continuous communication.

Retevis RB648P battery save mode extends runtime

Replaceable Antenna

The RB648 Plus features a detachable antenna design and supports upgrades to a high-gain antenna, enhancing signal reception and penetration performance. In complex environments such as buildings, warehouses, and farms, it helps improve communication stability and meets the needs for longer-range and more reliable communication.

Retevis RB648P replaceable high-gain antenna

2.5 Single-pin

Compatible with the earpiece and speaker microphone of RB648 two-way radios, it features a 2.5mm single-pin connector.

Rechargeable 

The RB648 Plus supports both Type-C direct charging and desktop charging, providing a more flexible and convenient charging experience. Whether in the office, vehicle, or on the job site, users can easily recharge the radio, extend working time, and keep teams connected with reliable communication.

Anti-slip design

The anti-slip body reduces drops and sliding damage during use, increasing stability and durability where radios get set down on steel, gravel, and scaffolding.

Emergency Alarm

Two alarm modes - remote and local - turn the RB648P into a safety tool. Press the alarm key in an emergency and the crew knows immediately, wherever they are on site.

High power waterproof UHF radio RB648 Plus VS Retevis RB648 PMR446 license-free radio

Retevis RB648P UHF radio vs RB648 PMR446 radio comparison

FAQ

One RB648 Plus IP67 UHF walkie talkie with built-in 2000mAh battery, an HS001 1-pin 2.5mm shoulder speaker mic, a belt clip, and the TR637 Bluetooth jobsite radio with its power adapter. It ships as a single kit - no separate purchases needed.

The RB648P transmits 5W on the UHF 400-470MHz business band, which requires a business license in the US. If you need a license-free option for Europe, see the RB648 PMR446 version - the comparison table above shows the differences.

Yes. The RB648P is built for construction: IP67 sealed against rain and dust, 1,000-drop tested from 2 meters, dual PTT for gloved hands, vibration alerts for noisy areas, and a 5W signal that reaches across about 30 floors or 3-5 km.

The TR637 is the site's sound system and call station: Bluetooth 5.0 streaming and wireless hands-free calls, 30 AM and 30 FM presets, USB MP3 playback, and a large speaker for music across the workspace - all in an IP54 drop-resistant body.

Yes. The TR637's USB port outputs 5V 1A, so it works as an emergency power bank for phones and small devices. The 5000mAh battery has capacity to spare during a full shift.

The RB648P runs up to 18 hours of continuous use on its 2000mAh battery, with battery save mode to stretch it further. The TR637's 5000mAh battery delivers 7-8 hours of playback and recharges by AC adapter, Type-C, or 4 x C batteries.

The RB648P radio is IP67 waterproof and dustproof - it survives 30 minutes in 1 meter of water. The HS001 speaker mic and the TR637 jobsite radio are both IP54 rated, handling rain, splashes, and dust clouds on open sites.

The HS001 is a 2.5mm 1-pin shoulder mic made for the RB48, RB48 Plus, RB648, and RB648 Plus series. If you run mixed fleets, the same mic serves all of them - one accessory, several radio families.

RB648P works with other UHF 400-470MHz analog radios programmed to matching frequencies and CTCSS/DCS codes, and its relay channels connect through a base station or repeater to extend range. Contact our team with your current fleet for a compatibility check.

The RB648 Plus is the high-power upgrade: 5W on the UHF business band versus the RB648's 0.5W PMR446, plus a hardened shell and up to 18 hours of runtime. The RB648 stays the license-free choice for Europe - the table above compares them line by line.

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DELIVERY
  • Dispatch: Within 24 Hours
  • Free shipping across all products on a minimum purchase of $50.
  • International delivery time - 7-10 business days
  • Cash on delivery might be available
  • Easy 30 days returns and exchanges
RETURNS

If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.

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About Retevis Walkie Talkie

With over 16 years of innovation and growth, RETEVIS has crafted a wide range of two way radio walkie talkies, include industrial grade radios , long range radios, radio for construction site, business band radios, radio repeaters and wireless radio communication solutions. Trusted by millions of users worldwide, RETEVIS ensures reliable, clear, and instant communication across over 170 countries and regions, serving industries like construction, security, manufacturing, emergency response, and more.

At RETEVIS, we prioritize quality, with all radios or repeaters meeting international certifications like FCC and CE. Our R&D department continuously innovates to offer advanced radio solutions that meet the unique communication needs of our customers. Backed a professional staff group, we provide specialized technical support and customer service, ensuring a seamless experience for both individuals and businesses.View More

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