The Poly Blackwire 3315 USB-C Headset delivers unparalleled audio quality and features. Other features: - PC connection via USB-C, mobile devices and tablets via 3.5 mm jack - Flexible noise-cancelling microphone - SoundGuard: Sound level limitation to protect against noise peaks above 118 dBA. G616 support limits the volume to 102 dBSPL. - Call answer/end button, volume +/-, mute - USB-C to USB-A adapter included 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