LeFun V8 Rugged Waterproof Dual SIMs 3G WCDMA Smartphone with Two-Way Radio Walkie-Talkie Function Android 4.2.2 Quad Core MTK6582 Dual SIMs 1GB RAM 8GB ROM 5.0 Inches HD IPS Screen 1280 * 720, MTK6582 1.3GHz Quad Core with 1 GB RAM and 8 GB ROM, Dual Cameras, Front 0.2M & Back 8.0M AF with strong flashlight Dual SIM cards, Dual standby, 3G: WCDMA 2100MHz/1900MHz/850MHz, 2G: GSM 850/900/1800/1900 MHz Built-in walkie-talkie two-way radio(World intercom standards) functions with extra external Antenna, adjustable radio power, bandwidth and frequency range, this will enable you to not loss connection even no cell phone network IP68 waterproof, dustproof and shockproof, various sensors Gyro Sensor, Electronic Compass, Temperature Sensor, Barometric Pressure Sensor WiFi(802.11b/g/n), Bluetooth 4.0, GPS, HFC, OTG, Multi-Languages support, multiply physical function keys including SOS key, Camera key, PTT key, Torch key and Reset key