- Dual Speaker With USB-C/A and 3.5mm- Ideal for all-day use, long conference calls and listening to multimedia- Noise canceling microphone masks nearby talkers for maximum call privacy- Hi-fi stereo with passive noise reduction- Includes universal USB-C/A- Connectivity to smartphone and tablet via 3.5 mm- One-touch call answer/end, volume +/- and mute- PC wideband audio with noise-canceling microphones for high-quality PC telephony- Plantronics Manager Pro, an additional purchase, enables your IT team to gain insight into every compatible Plantronics headset being used company-wide