Yealink W57R

• Rugged DECT handset with IP54 protection rating 
• Scratch resistant, disinfectant resistant 
• 1.8'' 128 x 160 TFT color screen with intuitive user interface 
• HD audio and Flexible Noise Reduction (FNR) 
• Vibration alarm 
• Up to 40-hour of talk time 
• Up to 575-hour of standby time 
• Keypad backlight and keypad lock 
• Fully compatible with Yealink W80/W90 MultiCell System for seamless roaming and handover

Voice Features:

• Full-duplex speakerphone 
• HD audio 
• Hearing Aid Compatibility (HAC) compliant 
• Frequency response: 100 Hz–7 kHz 
• FNR (Flexible Noise Reduction)/Noise Cancellation 
• Receiver volume control: 5 steps
• Ringer volume control: 5 steps+off 
• 9 ringer melodies 
• Multiple advisory tones 
• Acoustic warning for low battery status 
• DTMF

DECT:

• Frequency bands: 1880–1900 MHz (Europe), 1920–1930 MHz (US) 
• DECT Range: Up to 50 meters indoor (in ideal conditions), Up to 300 meters outdoor (in ideal conditions) 
• DECT Standards: CAT-iq2.0

Display:

• 1.8'' 128 x 160 TFT color screen 
• Intuitive user interface with icons and soft keys 
• Caller ID with name and number 
• Notification Light: voice mail, missed call 
• Date & time (manual/auto synchronization) 
• Screen saver 
• Multilingual user interface 
• Keypad backlight

Phone Features:

• Up to 2 simultaneous calls per handset 
• Handset select for receiving call 
• Handset and Number select for making call
• Auto intercom, auto answer 
• 3-way conference 
• Call forward: Always/Busy/No Answer 
• DND 
• Call waiting, mute, hold 
• Call transfer 
• Swap between calls 
• Redial 
• Speed dial
• Voice mail 
• Silence 
• Dial plan: Replace Rule/Area Code/Block Out 
• Keypad lock, emergency call 
• 100 phone book memory (store in the base) 
• Remote phonebook, LDAP, XML phonebook 
• Phonebook search, block list 
• Call history: All/Placed/Missed/Received (up to 100 entries)
• Direct IP call without SIP proxy 
• Reset to factory, reboot 
• Anonymous call, Anonymous call rejection  OTA (Over-The-Air) upgrade

Physical Features:

• Handset Size: 157 mm x 51 mm x 24 mm 
• Handset Weight: 183 g 
• Color: Black 
• Battery: 1460 mAh, Lithium-ion, 3.7 V, 5.4 WH, Up to 40-hour of talk time (in ideal conditions), Up to 575-hour of standby time (in ideal conditions) 
• Headset jack (3.5 mm) 
• Charger: DC 5V/0.6A Output 
• Power Adapter: - Input: 100-240 V-50/60 Hz, 0.2 A - Output: 5 V, 0.6 A 
• Backlit keypad with 25 keys: Standard ITU telephone keypad, 12 keys, 4 x 3, with star and pound key, 5 navigation keys (left, right, up, down, OK), 2 softkeys, 6 function keys (Speaker, message, Off-hook, Cancel, TRAN, Mute) - 6 shortcut keys 
• Operating humidity: 10% to 95% 
• Operating temperature: - 10°C to +50°C (+14- 122°F) 
• Storage temperature: - 30°C to +70°C (- 22- 158°F)