Key Features:- This wireless phone headset is perfect for everyday use with compatible electronic devices- Black on-ear design with high-comfort ear pads- Bluetooth for wireless use- Phone headset captures audio cleanly at frequencies of 100Hz-10000Hz- Impedance: #46 Ohms- Rechargeable battery provides up to 46 hours of working time

Sennheiser EPOS BTD 800 - Bluetooth Network Adapter - USB-C

Key Features:- Dual ear headset- HD Voice- Certified for Skype for Business- Noise-canceling microphone- High-comfort with large ear pads- Lightweight headset design- ActiveGard- protects from acoustic shock and sudden sound surges

Sennheiser EPOS Impact SC 30 USB Headset

Key Features:- Certified for Microsoft Teams /Skype for Business- USB-A jack + detachable 3.5mm Jack for smart phone or laptops- Mono ear coupling on Ear- Leatherette ear cushions- Cable length - 7.5ft (226cm)- Digital Signal Processing (DSP)- Noise canceling mic- In-line controls for volume and mute and answer- ActiveGard to stop noise spikes in the line

Key Features:- Active noise-canceling- Compatible laptops via USB adapter, Bluetooth-enabled desk phones, mobile phones, tablets, and smart watches- Works seamlessly across PC, mobile phones, tablets, Bluetooth-enabled desk phones and smart watches- Smart sensors answer calls by simply putting on the headset, mute by taking the headset off and pause music for incoming calls- Enhanced voice alerts announce caller ID, mute and connection status, talk time level- On-demand active noise canceling (ANC) so you can focus on your call or work- Precision tuned triple-mic with enhanced digital signal processing (DSP) for superior background noise canceling- High-quality stereo design provides hi-fi stereo sound and a more immersive experience- Dynamic Mute Alert senses and alerts you when you try to talk when muted- Leatherette ear cushions wrapped around pillow-soft memory foam- Cushioned metal headband provides durability while maintaining a comfortable, secure fit- Easily take the headset on the go with folding ear cushions and included carrying case

Key Features:- Dual 3.5mm and USB Type-A Connectivity- Cushioned and Durable Metal Headband- Fold-Flat Leatherette Ear Cushions- Noise-Canceling Flexible Boom Microphone- Inline Remote Control- Hearing Protection Technology- Auto-Adjusting Dynamic EQ- Digital Signal Processing (DSP)- Customizable Mute Settings- Carrying Case Included

Key Features:- Corded UC Headset- Noise-Canceling Microphone- USB Type-A- Monaural Design- Hearing Protection- Inline Call Controls- Folds Flat for Portability

Key Features:- 1 Line/Mic Switchable Channel - 1 Dedicated Line Channel - Channel Level and Master Out - Talk Over Switch - Compact 2 channel design - Talk over switch for microphone use - Powered with a 12VDC power supply

Key Features:- S/N Ratio — Mic in, phones out: 45.3dB. Line in, phones out: 83.3dB. Line in, line out: 84.3dB. Mic in, line out: 64dB - Inputs — 4 line or mic level - Outputs — 2 line/mic level, 1 phone - Phantom Power — 48V DC on each input - Level (Gain) Control — Each input & output - Rack Kit — RK–1