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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🎧 Elevate Every Voice, Command Every Meeting

UNIVERSAL ROOM FIT - Engineered to adapt to almost any conference room size, making your meetings sound professional everywhere.
EFFORTLESS INSTALLATION - Single Power over Ethernet (PoE) cable means zero clutter and lightning-fast setup.
SEAMLESS MEETING CONTROL - Mute button with visual indicator puts collaboration power at your fingertips—no more awkward interruptions.
SLEEK MINIMALIST DESIGN - Enhance your conference room’s aesthetic with a low-profile, clutter-free expansion mic.
CRYSTAL CLEAR AUDIO EVERYWHERE - Omnidirectional mic array ensures every voice is captured with pristine clarity, no matter where you sit.

The Polycom 2200-65790-001 Expansion Microphone Kit enhances your Poly Trio 8800 conferencing system with omnidirectional tri-capsule array microphones, delivering crystal-clear audio across any room size. Featuring a sleek design, simple PoE installation, and an intuitive mute button with indicator, it transforms your meeting space into a seamless collaboration hub.

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Compatible Devices	Smartphone
Colour	Black
Included Components	Microphone
Polar Pattern	Omnidirectional
Audio Sensitivity	54 dB
Impedance	600 Ohm
Microphone Form Factor	Tri-Capsule Array
Power Source	Corded Electric
Material	Polycom
Signal-to-Noise Ratio	65 dB
Number of Channels	1
Frequency Response	15000 Hz
Manufacturer	Polycom Inc.
Model Number	2200-65790-001
Manufacturer Part Number	2200-65790-001

Polycom 2200-65790-001 Expansion Microphone Kit for Rptrio 8800

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