The Poly Blackwire 5210 delivers signature audio paired with top notch features. Features: - All-day comfort for telephone conferences and multimedia - Noise-cancelling microphone blocks out distracting background noise - Connection option for smartphones and tablets via 3.5 mm jack - Answer/end call, volume control and mute buttons - Wideband audio with noise-cancelling microphone for a professional PC call experience - For standard UC applications and softphones from Avaya, Cisco, Microsoft, etc. Certified for Skype for Business Please note: We recommend using Poly Lens software with this product. This enables central management of video devices, headsets, phones and webcams. Other benefits: - Custom device settings - Always the latest firmware - Easy troubleshooting tool - Fast device integration - Dashboard layout with intelligent news feed