Feature 1 It can be used as a smart phone or as a walkietalkie. 2 For Android system, support dual card, support web surfing. 3 IP67 waterproof. With WIFI function. 4 5000 mAh polymer lithium battery, long standby. 5 Intercom function working frequency band UHF (400470MHz), the matching frequency can be adjusted manually.Smart walkie-talkie, plug-in for Android mobile phone walkie-talkie, smart walkie-talkie mobile phone that can be used as a mobile phone and as a walkie-talkie. Features: 1. It can be used as a smart phone or as a walkie-talkie. 2. For Android system, support dual card, support web surfing. 3. IP67 waterproof. With WIFI function. 4. 5000 mAh polymer lithium battery, long standby. 5. Intercom function working frequency band UHF (400-470MHz), the matching frequency can be adjusted manually. 6. The SIM card band supports GSM B2/B3/B5/B8 and WCDMA B1/B2/B5/B8. Please confirm the local frequency band before purchase. Specification: Processor: 4-core MT6580AW Operating system: for Android6.0 Language: 52 countries Memory: 1GB+16GB DDR2 Memory card: maximum support to 32GB LCD size: 3.5 inch TN Resolution: 854*480 Touch screen: 3.5 inches Accelerated gravity sensor: Yes Distance sensor: Yes Light sensor: Yes Band: GSM: B2 B3 B5 B8 WCDMA: B1 B2 B5 B8 TD-SCDMA: NO FDD-LTE: NO TDD-LTE: NO CDMA2000 EVDO: NO Front camera: 500W Rear camera: 800W WIFI: IEEE802.11b/g/n WIFI antenna: WIFI and BT common antenna / built-in FPC antenna Bluetooth: Bluetooth 4.0/BT2.1+EDR Bluetooth distance: 10 meters Positioning system: GPS positioning / AGPS positioning SIM card: dual card, MicroSIM Intercom function: analog intercom Intercom frequency band: UHF (400-470MHz) Headset intercom: Yes NFC: None USB interface: Micro USB2.0 Support OTG function: Yes Waterproof rating: IP67 Function button: intercom button Volume plus / minus button: volume plus / minus button Charging indicator: Yes Hang up button and switch button: Yes One-click call for help: Yes Top knob in analog state: frequency selection point Battery: Li-Po Battery capacity: 5000mAh Removable battery: detachable one battery Charging method: USB charging Working temperature: -15 C ~ 60 C Storage temperature: -40 C ~ 80 C Humidity: 20~90% Size: Approx. 15.5 * 6.5 * 3 cm / 6.1 * 2.6 * 1.2 in Weight: Approx. 390 g Package Iist: 1 * Walkie Talkie 1 * US Plug 1 * USB Cable 1 * Long UHF Antenna 1 * Short UHF Antenna 1 * Back Splint Note: 1. Please confirm whether the local mobile phone card network frequency band is consistent with the supported frequency band of our machine before placing the order. If it is inconsistent, please do not purchase it. We do not ship the mobile phone card. 2. This product has no paper manual, there is a simple English electronic manual, please be careful to buy. 3. This walkie-talkie mobile phone interface has no other professional mobile phones, and the mobile phone experience is not as good as other professional mobile phones. Please be careful to buy.