Yealink W57R can support you all the time, even on long workdays, as it features up to 40 hours of talk time and 575 hours of standby time. You can do more on a single charge!
W59R, certified to rigorous IP67 standards, is a professional ruggedized DECT handset with integrated Bluetooth and vibration alarm that is pretty eligible for any demanding environment.
The Yealink T3 series provides distraction-free communications with industry leading Smart Noise Filtering Technology, which delivers excellent sound quality without extraneous noises and allows fluent conversations.