Grandstream WP820\n\nThe Grandstream WP820 is a Wi-Fi wireless phone with many features such as high-definition audio, dual-band Wi-Fi, advanced antenna, and advanced roaming features. The WP820 is ideal for any wireless installation for individuals who require maximum mobility.Advanced Mobility \nThis powerful, portable WiFi phone comes equipped with integrated dual-band 802.11a/b/g/n WiFi support, advanced antenna design and roaming support, and integrated Bluetooth for pairing with headsets and mobile devices. By adding 7.5 hour talk time and HD voice with dual-MICs, the WP820 offers a powerful combination of features, mobility and durability to suit all portable telephony needs.Advanced Features \nThe colour display, dual-band support and powerful battery are great features in this terminal. It also has a multicast button and a push-to-talk button. Also, the WP820 phone can connect to the GDS3710 and GDS3705 gatekeepers of the same brand to match the need.