Yealink SIP-T34W. Product type: IP Phone, Product color: Black, Handset type: Wired handset. Lines quantity: 4 lines, Phonebook capacity: 1000 entries. Display: LED, Display diagonal: 2.4", Display resolution: 320 x 240 pixels. Ethernet LAN interface type: Gigabit Ethernet, Ethernet LAN data rates: 10,100,1000 Mbit/s, Wi-Fi standards: 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac). AC adapter input voltage: 100 - 240 V, Input frequency: 50 - 60 Hz