An African
RT4 Radio Tone update firmware Zello PTT smartphone installing a MT65xx Preloader Drivers

MTK6737, Quad Core 1.3GHz. Radio-tone rt4 4g lte android 6 wifi ptt zello echolink teamspeak + speaker mic 1 x speaker mic 1 x 4600mah battery 1 x usb cable 1 x gps antenna 1 x charger 1 x user manual. Applicable to other Walkie Talkie App. This item is in the category Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transceivers.