Dual-band Wi-Fi with efficient antenna design and advanced roaming support.,2 SIP accounts, 2 lines,HD voice & dual MIC design with AEC and Noise Shield Technology,Integrated Bluetooth to connect headsets,Rechargeable 2000mAh battery, 8 hour talk time, 200-hour standby,Configurable button for push-to-talk,Micro USB port and 3.5mm headset jack,Ruggedized design. Waterproof, dustproof, drop safe from 2.5m