RT4 4G LTE Android 6.0 PTT Smartphone

The RT4 PTT Smartphone is very robust Motorola-style and license-free radio, and it has no distance limitaions unlike traditional radio. It is suitable for 3G, 4G and Wifi Network, with High-accuracy GPS Antenna with Online Positioning Software Included, while instant location can be tracked by different platforms like PC and other smartphones. Owners can track Location History and Speed of any phones, there will be alarm and notifications for any phone which are out of boundary set by the owner.

This network radio is fully compatible with the International Radio Network (IRN) and with the new Echolink for Android.




Radio-Tone RT4  4G LTE Android 6.0 wifi PTT Smartphone
Easy for Fleet Management and Organization

A reliable communication service suitable for all types of projects are needed. Trucks, escalators, crane and lift personnel need to communicate in different groups and at the same time management and planning needs to be able to get hold of resources.


A dispatcher typically distribute work orders to vehicles and mobile workers in text form (in apps, SMS or e-mail) to smartphones or PDAs. However, for a mobile worker on the run, “voice” is still the safest, quickest and often best way to communicate back to the dispatcher or within a group. The possibility of reaching the fleet of vehicles in groups or individually is important in many situations.


A radio communication solution without range limitations, good sound quality and with the option to send an alarm to a dispatcher and/or colleagues on the road is the ideal tool. RT4 Smartphone with PTT and Global Positioning is a perfect fit for this customer segment. Not to forget the social aspect of being able to talk in a group with colleagues on the road using voice. We also have a dispatch console for easy fleet management, please visit https://radio-tone.com/dispatch-console/


Model No.  Radio Tone RT4
Features  High Sensitive GPS antenna
Support PTT
Support GPS/BDS
Dimensions  130*56.5*34mm
Net Weight  260g (include battery)
Band  GSM: 850/900/1800/1900 (B2/3/5/8)
WCDMA: 850/900/1900/2100(B1/2/5/8)
TDD-LTE:2600/1900/2300/2600 (B38/39/40/41)
Sim Card  Dual SIM card dual standby (one is micro SIM)
Service Provide  Unlocked
Shell Material  Plastic
OS  Android 6.0
CPU  MTK6737, Quad Core 1.3GHz
ROM  8GB ROM, support TF card up to 32GB
Screen  2.4 inch QVGA capacitive touch screen, 320*240
Data transfer  USB/Bluetooth
Mobile internet  WAP/WiFi
Camera  Double cameras, 2.0MP front camera, 5.0MP back camera
Message  SMS/MMS
Input  Handwrite/Keypad
GPS  Yes, also support A-GPS/BDS
WiFi  IEEE 802.11 b/g/n
Working time  Up to 20 hours
Standby time  Up to 96 hours
Other Features  Email, Wallpapers, Calendar, Calculator, Clock, Play Store, Tethering & portable hotspot, etc
Languages  English, Bahasa Indonesia, Bahasa Melayu, Cestina, Dansk, Deutsch, Espanol, Filipino, French, Hrvatski, Italiano, Latviesu, Lietuviu,  Magyar, Nederlands, Norsk, Polish, Portuguese, Romana, Slovencina, Suomi, Svenska, Vietnamese, Turkish, Greek, Bulgarian, Russian, Ukrainian, Hebrew, Arabic, Thai, Cambodian,  Korean, Simplified/Traditional Chinese.
Color  Black
Accessories  1 x 4600mAh battery
1 x USB cable
1 x GPS Antenna
1 x Charger
1 x User manual


Our official Dealer: Radioshop888

Radioshop888.com is our official dealer. Find them on eBay, Amazon and their own website.