Note: This phone does not come with a power supply,  compatible adapters are featured under the Accessories tab
Yealink T57W Prime Business Phone
  Yealink SIP-T57W is an easy-to-use Prime Business Phone with an adjustable
  7-inch multi-point touch screen that you can not only easily and flexibly find
  the comfortable viewing angle according to the personal and environmental
  needs, but also get a rich visual presentation and easy navigation with just
  one-touch.
Features:
- 7” 800 x 480 capacitive adjustable touch screen 
- Adjustable LCD screen 
- Dual firmware images 
- T53/T53W/T54W/T57W firmware unified 
- Built-in Bluetooth 4.2 
- Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/g/n/ac) 
- USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50 
- Up to 16 VoIP accounts 
- Dual-port Gigabit Ethernet
 
 
- Supports up to 4 concurrent calls 
- PoE support 
- HAC Handset 
- Paperless label design  
- Wall mountable
 
 
About the Series
Specifications:
- Power consumption (PSU): 3.2W-6.3W 
- Power consumption (PoE): 4.0W-7.8W 
- Operating humidity: 10~95% 
- Operating temperature: -10~50°C (+14~122°F) 
Package Contents: