PLANTRONIC POLY 5220 | NOISE CANCELLING | TYPE A | ORIGINAL | 98% smooth TOP FEATURES • Ideal for all-day use, long conference calls and listening to multimedia. • Noise canceling microphone masks nearby talkers for maximum call privacy. • Available in monaural (Blackwire 5210) or hi-fi stereo with passive noise reduction (Blackwire 5220). • 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. * It cancel 38% background noise.