Mobile Phone Walkie Talkie Dual Card 4G Two Way Radio for Security Police Logistics            Feature: 1. Network Settings: Smartphone walkie talkie supports global network intercom, compatible with 2G, 3G, 4G networks, and support any for Android APP download, installation and use.    2. Front and Rear Dual Cameras: Mobile phone two way radio is designed with a 0.3 MP front camera and a 5.0 MP rear high definition camera, allowing to shoot the scene clearly.    3. Excellent Configuration: The 4G two way radio comes with 2.4in touch screen, dual card dual standby, quad core CPU processor, built in 4000mAh large battery for long standby time.    4. Usages: Classic walkie talkie design, suitable for security, logistics, public transportation and other industries. IP65 dust proof and anti fall design, suitable for harsh outdoor conditions.    5. Stable Signal: The PTT button can operate the intercom with one hand and one button. The external GSM signal enhancement antenna makes the signal of the handheld terminal more stable.       Specification:            Item Type: Mobile Phone Walkie Talkie Material: ABS Uses: Suitable for security, police, logistics, public transportation and other industries. Network frequency band: 2G: GSM850/900/1800/1900MHz 3G: WCDMA B1/B2/B5/B8, TD-SCDMA B34/B39 4G: FDD-LTE: B1/B3/B7/B8/B20 TDD LTE: B38/B39/B40/B41 SIM Card: Dual card dual standby System Version: For Android 6.0 for Marshmallow CPU: For MTK6737M Cortex A53 quad core, 1.1GHz; for Mali T720 RAM: 1G Memory: Support memory card up to 32GB Screen 2.4 inch QVGA IPS capacitive touch screen Resolution: 320x240px Phonebook: 1000 Information: SMS, MMS Input: Handwriting Keyboard Speaker: φ32 stereo speakers Headphone Port: Micro USB Data Transfer: USB, BT Mobile Network: WAP, Wireless Network Camera: Dual camera, 0.3MP front camera, 5.0MP rear camera FM Radio: Yes, require headphones (NOT included) WiFi: Yes, IEEE802.11b/g/n Global Positioning System: Yes, also supports A GPS Bluetooth: Yes, V4.0 (BR EDR + BLE) POC Button: Yes, can be pre installed Gravity Sensor: N/A Standby Time: Up to 240 hours Other Features: Email, wallpapers, tethering and portable hotspots, game store, etc.