- Double-sided - USB-A (for phone and/or PC/MAC) - 3.5mm (laptop and/or smart device) - Noise-cancelling microphone - In-line call control - Leatherette ear pads

- Double-sided - USB-A - Noise-cancelling microphone - In-line call control - Foam ear pads

- Single-sided - USB-A - Noise-cancelling microphone - In-line call control - Foam ear pad

- Bluetooth (v4.1) - Binaural / Stereo - Active noise canceling technology - USB Bluetooth adapter included - Up to 98 ft/30m range - Up to 12 hours talking - Hearing protection - Magnetic desktop...

- Bluetooth (v4.1) - Binaural / Stereo - Active noise canceling technology - USB Bluetooth adapter included - Up to 98 ft/30m range - Up to 12 hours talking - Hearing protection - For Softphone on...

- Bluetooth (v4.1) - Binaural / Stereo - BT600 USB Bluetooth adapter included - Up to 98 ft/30m range - Up to 12 hours talking / 13 days standby time - Hearing protection - Certified for Microsoft Skype...

- Bluetooth (v4.1) - Monaural - BT600 USB Bluetooth adapter included - Up to 98 ft/30m range - Up to 12 hours talking / 13 days standby time - Hearing protection - Certified for Microsoft Skype for...

- Bluetooth (v3.0) - Up to 7 hours talking / 11 days standby time - 18 grams - Multipoint - Noise canceling - Wind canceling - Smart Sensors - For Softphone on PC/MAC and/or Smartphone by Bluetooth

- Hi-Fi stereo with passive noise reduction - Connectivity to smartphone and tablet via 3.5 mm -  Leatherette ear cushions fold flat - Carrying case for easy storage and portability - Intuitive inline...

- Connectivity to smartphone and tablet via 3.5 mm - Leatherette ear cushions fold flat - Carrying case for easy storage and portability - Intuitive inline controls (answer/end/volume/mute) - PC wideband audio...

- Hi-Fi stereo with passive noise reduction - Intuitive inline controls (answer/end/volume/mute) - PC wideband audio with noise-canceling microphones - For SoftPhones (Skype, Xten, eyeBeam,...), on PC/MAC via...

- Intuitive inline controls (answer/end/volume/mute) - PC wideband audio with noise-canceling microphones - For SoftPhones (Skype, Xten, eyeBeam,...), on PC/MAC via USB Plug - Optional USB-C version (use...

- Single Connectivity - Dialogue in motion - ActiveGard® - Full work day talk time - Phone conferencing - 2-in-1 wearing style - Fast charging - Noise-cancelling microphone

- Certifed for Skype for Business - Sennheiser HD voice clarity - Noise canceling microphone - High-Comfort - Solid construction - Dual-sided wearing style - Bendable boom arm - ActiveGard™ - Peace...

- Certifed for Skype for Business - Sennheiser HD voice clarity - Noise canceling microphone - High-Comfort - Solid construction - Single-sided wearing style - Bendable boom arm - ActiveGard™ - Peace...

- Cable for Smartphone and DECT

- DECT / GSM cable

- Headset cable for Avaya 1600/9600 series phones

- Headset connector cable with high microphone sensitivity

- Standard headset connection cable with standard microphone sensitivity

- Standard headset connection cable

- Best-in-class Comfort - Noise-canceling microphone - Unique Robust Construction - Dual-sided wearing style - Durability - Sennheiser HD Voice Clarity - Bendable Boom Arm - Pivotable Boom - Name...

- Best-in-class Comfort - Noise-canceling microphone - Unique Robust Construction - Single-sided wearing style - Durability - Sennheiser HD Voice Clarity - Bendable Boom Arm - Pivotable Boom - Name...

- Wireless hands free solution for GAP DECT phones - Discrete desk charger/headset holder - Range: with DECT phones, up to 120m, 60m in typical offie - Answer/End, Mute and volume controls - Up to 7 hrs talk...

- Gain mobility – multi-task, hands-free up to 350 feet (100 metres) - One-touch call answer/end, vol +/- and mute - Energy efficient adaptive power system - Conference in up to three additional CS500 or Savi...