Walkie Talkie Zello PTT Phone F22 Plus Dual SIM 3500mAh 2.4Inch Touch Screen 512MB RAM 4GB ROM Android 4.4 3G Smartphone Leave a Comment / By admin / 2017-02-23 Walkie Talkie Zello PTT Phone F22 Plus Dual SIM 3500mAh 2.4Inch Touch Screen 512MB RAM 4GB ROM Android 4.4 3G Smartphone