The WP820 is a portable WiFi phone designed to suit a variety of enterprises and vertical market applications, including retail, logistics, medical and security. This 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. The GMC08, a battery charging pack for the WP820 that can charge up to 8 batteries at a time, is available seperately. Display Display: LCD Display diagonal: 6.1 cm (2.4") Display resolution: 240 x 320 pixels Backlight display: Yes Audio Speakerphone: Yes Number of microphones: 2 Weight & dimensions Width: 168.5 mm Depth: 52.5 mm Height: 21.8 mm Weight: 161 g Power AC adapter input voltage: 100 - 240 V AC adapter output voltage: 5 V AC adapter output current: 1 A Power consumption (typical): 5 W Standby time: 150 h Talk time: 7.5 h Operational conditions Operating temperature (T-T): 0 - 45 °C Operating relative humidity (H-H): 0 - 90% Storage relative humidity (H-H): 0 - 90% Storage temperature (T-T): -20 - 60 °C Network Wi-Fi: Yes Bluetooth: Yes Bluetooth version: 4.2 Supported network protocols: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6 Quality of Service (QoS) support: Yes DHCP client: Yes Security algorithms: 256-bit AES, SRTP Networking standards: IEEE 802.1x Phone features Lines quantity: 2 lines Phonebook capacity: 500 entries Call waiting: Yes Call hold: Yes Conference call: Yes On-hook dialling: Yes Vibrating alert: Yes Call history: Yes Management features Volume control: Buttons Add new contacts from handset: Yes Packaging content Number of handles included: 1 pc(s) Base station: Yes Quick start guide: Yes AC adapter included: Yes Charger: Yes Headset included: Yes Battery Battery technology: Lithium-Ion (Li-Ion) Battery capacity: 1500 mAh Design Product type: IP Phone Product colour: Black, Silver Handset type: Wireless handset Performance Operating system installed: Android Operating system version: 7.0 Logistics data Harmonized System (HS) code: 85171800