Poly Savi 7320 Wireless DECT Headset, Stereo, Noise Cancelling Microphone, Over The Head Binaural Ear Cup, Black, 590 ft Range CONDITION:New Damaged Box Safety Features Including Overheat Protection: Manufacturer Ambir Technology Inc Safety Features Including Overheat Protection: Includes an automatic safety cut out to prevent overheating and a lid cover to avoid oil splashing And to stop ambient sounds from disrupting your listening experience simply activate hybrid active noise cancellation mode to instantly immerse yourself in the song 55 lbs to reduce neck strain and allow comfortable all day use The headset features an active noise cancelling microphone that effectively filters out background noise