<b>Perfectly compatible with Yealink Phones</b><br><br>Runs right out of box a QD to RJ9 plug-and-play setup makes the connectivity to<br>Yealink IP phones. The phones can automatically optimizes acoustic parameters<br>for your YHS34/YHS34 Lite. Perfect match with Yealink desk phones give you optimized audio quality.<br><br><b>Unparallel Audio Experience</b><br><br>Made for calls YHS34/YHS34 Lite is kitted out with a high signal-to-noise ratio<br>speaker and independent cavity design. The passive noise cancellation creates a<br>richer and clearer conversations with reduced background noise.<br> <br><b>Ultra-lightweight All Day Wearing Comfort</b><br><br>Built for comfort with soft ear cushions and ultra-lightweight materials the YHS34/<br>YHS34 Lite is 10%~30% lighter than other headsets in the same range. Its ergonomic design makes this headset comfortable enough for long conference calls and<br>all day use.