Yealink W59r, Ruggedized Dect Handset for W60b And W80b (YEA-W59R) - Display: 128×160 Pixel Back Light Colour LCD Display, Total Handsets: Up To 8, Handsets Per Base Station, Simultaneous Voice Calls: Up To 8 Simultaneous Calls, Battery: Li-Ion – 360 Hours Standby/28 Hours Talk Time, Compatibility: Yealink W60B And W80B Base Station