Previous page Buy One. Get One Free. Buy one CS340BT QZ Wireless Headsets with Active Noise Cancellation and get one free. Stay Connected Bluetooth 5.0 and up to 30+ ft of range means you can stay connected clearly and confidently. Cancel Everything Active Noise Cancellation significantly reduces unwanted background noise during calls . Crystal Clear Communication Dual microphone CVC 8.0 eliminates background noise for listeners on the other end. Sounds Good. Looks Good. A sleek matte grey design finished with premium materials and soft leatherette cushions. Next page 1 CS340BT QZ 2 Pack Bundle 2 Bluetooth 5.0 3 Active Noise Cancellation 4 Dual-Microphone CVC 8.0 5 Premium Design Bluetooth 5.0 Connect quickly and confidently with wireless Bluetooth 5.0. As soon as you turn on CS340BT QZ it's already connected up to 30+ ft of wireless range. USB-C The CS340BT QZ Wireless Communication headset features a USB-C charging port. Active Noise Cancellation CS340BT QZ features Active Noise Cancellation, significantly reducing unwanted background noise during calls and features a dedication on/off button. Dual-Microphone CVC 8.0 Dual microphone CVC 8.0 eliminates background noise providing crystal clear voice communication to listeners on the other end. Crystal Clear Communication ANC with Dual-Microphone CVC 8.0 Hear and be heard with with Environmental and Active Noise Cancellation. A dual microphone with CVC 8.0 eliminates background noise providing crystal clear voice communication to listeners on the other end. Buy One. Get One Free. Buy one Koss CS340BT QZ Wireless Communication Headsets and get a second one free. Experience crystal clear communication at work, home or on the go and up to 30+ hours of battery life. Wireless or Wired We all forget to charge our devices from time to time, so the integrated 3.5mm audio jack allows for wired use in low battery situations. On-Board Controls Control ANC, volume and music as well as answer/end calls with intuitive on-board controls The Perfect Fit CS340BT QZ features a soft leatherette headband that's adjustable so you can work not only clearly, but comfortably too. All-Day Battery With up to 30+ hours of talk/play time (22+ hours with ANC on) CS340BT QZ is designed for all-day use. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Bluetooth 5.0 Microphone Dual-Microphone CVC 8.0 Environmental Noise Cancellation Headset Active Noise Cancellation Charging USB-C Battery 30+ hours of talk/play time (22+ hours with ANC on) Controls On-board controls for ANC, volume, music and answer/end calls Cushions On-ear leatherette Headband Adjustable leatherette Frequency Response 20-20,000 Hz Impedance 36 Ohms SPL 94 dB Included CS340BT QZ, USB-C charging cable, 4ft 3.5mm audio cable