Yealink W77P. Product type: IP Phone. Colour of product: Black. Handset type: Wireless handset. Maximum indoor range: 50 m. Maximum outdoor range: 300 m. Dual-tone multi-frequency (DTMF) modes: SIP info. Phonebook capacity: 1000 entries. Display: TFT. Display diagonal: 4.57 cm (1.8"). Display resolution: 128 x 160 pixels. Ethernet LAN interface type: Fast Ethernet. Ethernet LAN data rates: 10,100 Mbit/s.