Does it need an amplifier? Or you just connect it to your standard phone via the handset jack

You can get a link cable to connect it with phone or laptop.This can not directly be connected to either phone or laptop.See my other listing for link cable.

Does this set come with the leather ear cushions as well?

Hello Lynette Mccleney - The leather ear cushions are included with the Jabra Biz 2300 USB headset, as well. Thank you.

what is the difference between this and the 2325 (QD model) that is 1/2 the price?

The USB duo is a one piece solution headset to USB. The GN 2325 ends in a quick disconnect and still needs a lower cord to phone , usb or amplifier to work.

Hello, does anyone know is this unit works with a traditional phone (rj)? also, does the speaker reduce background noise and mic noise cancelling? thx

I believe the headset will work with traditional phones, but you have to be careful to also purchase the correct jack adapter. It's a two part purchase. I purchased the headset and jack adapter specific to Cisco IP phones. As far as noise reduction is concerned, it meets my needs very well. It still allows for some minimal sound to come through, which I prefer so that I am aware of what is going on around me, but nearly eliminates all background noise for a clear and comfortable conversation. Also, the party at the other end can hear me clearly without background noise interfering. The headset is very confortable for long conversations. Sometime I forget that I'm wearing it.

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Description

🎧 Elevate your call game with unbreakable clarity and comfort!

CRYSTAL CLEAR HD VOICE - Hear and be heard with advanced HD voice tech that cuts through office noise effortlessly.
KEVLAR REINFORCED CABLE - Engineered to survive daily wear, office chair wheels, and sharp objects—durability you can trust.
UNBREAKABLE 360 BOOM ARM - FreeSpin design lets you rotate with zero risk of damage—built for nonstop multitasking.
AIR SHOCK NOISE CANCELLING MIC - Filters out breathing and popping sounds for professional-grade call clarity every time.
TCO CERTIFIED FOR SUSTAINABILITY - Feel good about your purchase with eco-conscious certification that meets rigorous standards.

The JabraBiz 2300 USB Duo is a wired professional call center headset featuring a 360° rotatable FreeSpin boom arm, HD voice technology for superior call clarity, and a Kevlar-reinforced cable designed to withstand harsh office environments. Equipped with an air shock noise-cancelling microphone, it ensures crisp communication by filtering out unwanted noises. TCO Certified for sustainability, this headset combines durability, comfort, and eco-conscious design tailored for demanding professional use.

Specifications

Control Method	Touch
Control Type	Volume Control
Item Weight	0.3 Pounds
Is Electric	No
Number of Power Levels	3
Antenna Location	Calling
Compatible Devices	Universal
Cable Features	Retractable
Additional Features	Microphone Included
Enclosure Material	Plastic
Specific Uses For Product	Professional Call Center
Headphone Folding Features	On Ear
Earpiece Shape	On-Ear
Headphones Ear Placement	Over Ear
Style Name	Biz 2300 Duo
Color	Black
Wireless Technology	no wireless technology
Connectivity Technology	Wired
Headphone Jack	Wired
Frequency Range	100 - 10000 hertz
Audio Driver Type	Dynamic Driver
Frequency Response	1E+4 Hz
Sensitivity	101 dB
Impedance	32 Ohm
Noise Control	None

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