Review on Radio-Tone RT4 Smartphone. Brand new RT4 Smartphone from Radio-Tone, which is an improved and 4G version of the old RT3.
The RT4 PTT Smartphone is a license-free product, 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.
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