• Microphone Type: Bi-directional
• Input Impedance: 20 Ohms
• Sensitivity (headphone): 115 dB +/-3 dB
• Sensitivity (microphone): -42 dBV/Pa +/- 3 dB
• Frequency response (Headset): 20 Hz – 20 kHz
• Frequency response (Microphone): 100 Hz – 16 KHz
• Cable length: 1.8 m

Logitech H390 Wired Headset for PC/Laptop, Stereo Headphones with Noise Cancelling Microphone, USB-A, in-Line Controls for Video Meetings, Music, Gaming and Beyond – Black

• Digital Stereo Sound: Fine-tuned drivers provide enhanced digital audio for music, calls, meetings and more
• Rotating Noise Canceling Mic: Minimizes unwanted background noise for clear conversations; the rotating boom arm can be tucked out of the way when you’re not using it
• Handy In-line Controls: Simple in-line controls on the headset cable let you adjust the volume or mute calls without disruption
• Plug-and-Play USB Computer Headset: Simply plug the USB-A connector into your computer and you’re ready to talk or listen without the need to install software
• Padded Comfort: Comfortable headphones with adjustable headband features swivel-mounted, leatherette ear cushions for hours of comfort and is easy to clean
• Move Freely With Long Cable: The 6.23 ft (1.9 m) USB A cable is just the right length to give you the freedom to stand up and stretch during long conversations
• Responsible Packaging: H390 Logitech Headset uses FSC-certified paper for responsible packaging

JBL Tune 125BT features and specs

• Earpiece Design: In-Ear (Intra-Aural)
• Driver Size: 0.3″ / 8.6 mm
• Impedance: 16 Ohms
• Sensitivity: 96 dB SPL at 1 kHz / 1 mW
• Bluetooth: 5.0
• Capacity: 120 mAh
• Runtime: 16 Hours (BT)
• Quick Charging Times: 15 Minutes for 1 Hour
• Recharge Time: 2 Hours