The WP820 is a portable Wi FiPhone designed to suit a variety of enterprises & vertical market applications, including retail, logistics, medical & security. This powerful, portable Wi FiPhone comes equipped with integrated dual-band 802.11a/b/g/n Wi Fi support, advanced antenna design & roaming support, & integrated Bluetooth for pairing with headsets & mobile devices. By adding 7.5 hour talk time & HD voice with dual-MICs, the WP820 offers a powerful combination of features, mobility & durability to suit all portable telephony needs. The GMC08, a battery charging pack for the WP820 that can charge up to 8 batteries at a time, is available seperately.