J&R Weatherproof Mobile Phone, IP67 Rugged Feature Telephone, Suitable for Mine and Various Extreme Environments

J&R Weatherproof Mobile Phone, IP67 Rugged Feature Telephone, Suitable for Mine and Various Extreme Environments. IP67 Rugged Design: Explosion-proof, waterproof, dust-proof, and shock-proof for extreme environments. Long Battery Life: Standby time over 300 hours and talk time greater than 9 hours. Group Call & SOS: Supports Group Call Talk, One Touch SOS, and Offline Communication. Self-Organized Network: Enables communication without network coverage with assisted positioning. Extended Talk Distance: Barrier-free call distance ranges from 550 to 900 meters. High Capacity Support: Single base station supports up to 100 simultaneous mobile phone calls. Fast Number Entry: Supports batch writing of phone numbers and phone books without manual input. Dual Band WiFi: Supports IEEE 802.11a/b/g/n with 2.4GHz and 5.8GHz frequency bands.