The used Sonim XP3 flip phone is a dependable rugged military tested device to bring with you to hazardous job sites and it s great to bring along on rough trips and activities like mountaineering cross country skiing and hiking. The rugged military tested XP3 is FirstNet and B14 ready which makes it perfect for first responders. This device comes with features common to 2-way radios like PTT (Push To Transmit) large glove-friendly buttons and hearing aid compatibility. This used Sonim XP3 flip phone went through rigorous durability testing. The XP3 is MIL-STD-810G compliant and IP68 certified. This phone can almost any abuse you throw at it. The Sonim XP3 comes with a removable 1500mAh Li-Ion battery that gives up to 21 hours of talk time and a 100dB+ ultra loudspeaker for noisy surroundings. The XP3 has a USB Type-C interface as well as other smartphone-like features such as NFC capability Bluetooth WiFi calling and GPS.