Can this be connected to a desk phone

I doubt it, but you just put the Dingle in your pc usb

Do you need the usb bluetooth dongle? or is that only supplied in case you don't have bt built into your computer?

I use the dungeon my work PC, no Bluetooth, not needed on my Windows lapntop

Am i right that the headset supports bluetooth 5.2, but that the supplied dongle is only bt 5.1?

It works perfectly and is already paired

Is it possible to pair two headsets to work as an independent intercom? I want to use this to communicate with my foredeck crew when sailing

Good question, it would be great if this could be done, but frankly I'm not sure, perhaps ask the manufacturer directly.

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Description

🎙️ Own every call, wherever you are.

HYBRID WORK ESSENTIAL - Designed for professionals balancing home and office, delivering premium audio without premium price.
COMFORT THAT LASTS ALL DAY - Adjustable padded headband and passive noise isolation keep you focused and fatigue-free.
FREEDOM TO MOVE STAY CONNECTED - Bluetooth 5.2 with up to 164 ft wireless range keeps you untethered in your workspace.
PLUG IN OR GO WIRELESS YOUR CHOICE - Seamlessly switch between wired USB and wireless Bluetooth modes for ultimate flexibility.
CRYSTAL CLEAR CALLS ZERO DISTRACTIONS - Noise-canceling dual mic with Acoustic Fence blocks background noise so your voice shines.

The POLY Voyager 4320 UC USB-A Headset combines advanced noise-canceling dual microphones with Acoustic Fence technology and Bluetooth 5.2 connectivity, offering up to 24 hours of battery life and a 50-meter wireless range. Its versatile wired or wireless modes, lightweight design, and comfortable padded headband make it the perfect audio companion for hybrid professionals seeking clear communication and all-day comfort.

Specifications

Included components	Cable, Ear Cushions
Age range (description)	Adult
Material	Polyurethane (PU)
Specific uses for product	Home and Office Use
Charging time	1.6 Hour
Recommended uses for product	Calling, Online Meetings
Compatible devices	[GENERAL] Bluetooth-enabled devices with appropriate software
Control type	Noise Control
Cable feature	Retractable
Item weight	162 Grams
Water resistance level	Not Water Resistant
Frequency range	20 Hz - 20,000 Hz
Package type	FFP
Style	Standard
Control method	Remote
Number of items	1
Product Dimensions	5 x 21 x 18 cm; 162 g
Batteries	1 Lithium Polymer batteries required. (included)
Item model number	218475-01
Manufacturer	Poly
Form Factor	On Ear
Computer Memory Type	DIMM
Hardware Platform	PC
Average Battery Life (in hours)	24 Hour
Are Batteries Included	Yes
Lithium Battery Energy Content	360 Milliamp Hours (mAh)
Lithium Battery Packaging	Batteries contained in equipment
Number Of Lithium Ion Cells	1
Item Weight	162 g
Guaranteed software updates until	unknown

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