Can more than 2 be connected to the Trio and are they wireless?

Not more than 2 (unless you daisy-chain Trios); no they are not wireless

Can i use these mics with my 8800 when connected via usb to a pc? im mostly using it this way, and not like a regular phone.

no, they have a specific Polycom plug

Need longer cables for these. What connnector/cable do they use?

Polycom cables. they sell longer cables for that microphone

Can the polycom realpresence trio 8800 ip conference phone work with 4 of the expansion mic's?

Pretty sure it cannot, by itself. It can only take up to two expansion microphones directly attached. However - Polycom recently released firmware that will reportedly let you daisy chain an add'l Trio 8800 - which would allow you to add another phone, and possibly another pair of expansion microphones to the secondary Trio. https://community.polycom.com/t5/VoIP-SIP-Phones/FAQ-Daisy-chaining-a-Polycom-Trio/td-p/102702 https://support.polycom.com/content/dam/polycom-support/products/voice/realpresence-trio/release-notes/en/polycom-trio-rn-ucs-5-8-0-aa.pdf

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Polycom RealPresence Trio Expansion Microphones (2200-65790-001)

Polycom RealPresence Trio Expansion Microphones (2200-65790-001)

Product ID: 39231098

Details

Brand
POLYCOM
Color
black
Compatible Devices
Personal
Connectivity Technology
XLR
Connector Type
XLR
Included Components
microphone

🎤Tri-capsule array for crystal-clear audio

📶Omnidirectional polar pattern for 360° sound capture

🔌XLR connectivity for professional-grade integration

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Description

🎧 Elevate every meeting—hear everything, miss nothing.

360 SOUND CAPTURE - Omnidirectional polar pattern picks up voices from all directions, eliminating dead zones in meetings.
EXPAND YOUR AUDIO REACH - Seamlessly boost your RealPresence Trio setup with genuine expansion microphones for flawless conference sound.
NOISE RESISTANT CLARITY - 65 dB signal-to-noise ratio delivers crisp, clear communication even in busy office environments.
TRUSTED GENUINE REPLACEMENT - Certified Polycom part guarantees compatibility and durability for your conferencing system.
PROFESSIONAL GRADE CONNECTIVITY - XLR connectors ensure stable, high-quality audio transmission every time.

The Polycom RealPresence Trio Expansion Microphones (2200-65790-001) are genuine, professional-grade XLR microphones designed to enhance your conference phone audio with a tri-capsule omnidirectional array, delivering clear, 360-degree sound capture and superior noise resistance for seamless communication in any meeting environment.

Specifications

ASIN	B01EECTXUW
Antenna Location	Video Conference
Audible Noise	65 Decibels
Audio Sensitivity	54 Decibels
Best Sellers Rank	#52,124 in Musical Instruments ( See Top 100 in Musical Instruments ) #155 in Telephone Audio Conferencing Products #498 in Multipurpose Condenser Microphones
Brand	POLYCOM Companies
Built-In Media	microphone
Color	black
Compatible Devices	Personal Computer
Connectivity Technology	XLR
Connector Type	XLR
Customer Reviews	4.6 4.6 out of 5 stars (33)
EU Spare Part Availability Duration	1 Years
Enclosure Material	Polycom
Frequency Response	15000 Hz
Hardware Platform	Karaoke Machine
Impedance	2200 Ohms
Item Dimensions	0.01 x 0.01 x 0.01 inches
Manufacturer	POLYCOM Companies
Mfr Part Number	2200-65790-001
Microphone Form Factor	Tri-Capsule Array
Model Name	2200-65790-001
Model Number	2200-65790-001
Number of Channels	1
Polar Pattern	Omnidirectional
Power Source	Corded Electric
Signal-to-Noise Ratio	65 dB
Special Feature	Stand
UPC	610807848622 779184012139

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