The WP822 is a portable Wi-Fi IP phone designed to suit a variety of enterprises and vertical market applications, including retail, logistics, medical and security. This business-grade Wi-Fi phone comes equipped with integrated dual-band 802.11a/b/g/n/ac Wi-Fi, an advanced antenna design and roaming support. By adding 8-hour talk time, HD voice with dual-MICs, and a configurable push-to-talk button, the WP822 comes equipped with a combination of features, mobility and durability to suit all portable telephony needs. Display Display: LCD Display diagonal: 6.1 cm (2.4") Display resolution: 240 x 320 pixels Audio Speakerphone: Yes Number of microphones: 2 Ports & interfaces Headset connectivity: 3.5 mm Microphone in: Yes Weight & dimensions Handset dimensions (WxDxH): 164 x 52 x 25.8 mm Base dimensions (WxDxH): 77.9 x 81.2 x 38.2 mm Handset weight: 185.9 g Package weight: 422.6 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: 200 h Talk time: 8 h Operational conditions Operating temperature (T-T): 0 - 45 °C Operating relative humidity (H-H): 10 - 90% Storage relative humidity (H-H): 10 - 90% Storage temperature (T-T): -20 - 60 °C Network Wi-Fi: Yes Bluetooth: Yes Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) 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, 802.1x, TLS, SRTP, IPv6 Quality of Service (QoS) support: Yes DHCP client: Yes Security algorithms: 256-bit AES, 802.1x RADIUS, MD5, SRTP, TLS 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: 2000 mAh Design Product type: IP Phone Product colour: Black, Silver Handset type: Wireless handset