Yealink W59R, certified to rigorous IP67 standard, is a professional ruggedized DECT handset with integrated Bluetooth and vibration alarm that is pretty eligible for the environment where it may be dusty and humid. It not only combines the advantages of wireless communication and the rich features of a Voice-over-IP phone, but is also fully compatible with Yealink W80 Multi-Cell System for seamless roaming and handover of the calls. This handset provides users with the convenience and good experience of mobile communication in and between each zone and keeps stable in the complicated and harsh environments. As a rugged and durable handset, W59R has also been developed with Yealink optimal high-definition audio quality that combines multiple advanced technologies together, including FNR (Flexible Noise Reduction), LC3 (Low Complexity Communication Codec) Plus, full duplex, and Opus. This means users can get a stable and high-quality audio experience even when the environment is full of noise or wireless interference. Besides, the complete alarm functions and integrated G-sensor boost the occupational safety for those who work in hazardous locations.