How many pairs does it require from the cat5 and which ones?

OP asking how many and which of the 4 pairs of conductors that make up a cat5e or cat6 cable does it use. You have to be familiar with how category cable works to answer that.

Need to hook laptop audio out to a sound board at church (100') and just using a cable produced major hum. Will this would remove hum?

It sounds like you need a ground loop isolator. They are very cheap. They come in RCA and 3.5mm. Just search AMAZON for: "ground loop isolator 3.5mm"

this is an RJ11 cord?

no, it has an rj45 jack on one end of the adapter so you can plug an ethernet cable into it for your transmission line. An rj11 plug/cord will plug into it but it will not fit properly and would not work well for your audio if it were a very long cable

Can i use this item to plug my echo dot to sonos play 1 speakers and get sound?

Dear friend:Thanks for your question,I'm very sorry,this item dedicated cat5 or cat6 cable to extend the distance between the audio source ,max 240FT(for example:like your smartphone or PC) and your receiver or amp.

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LINESO 3.5mm Stereo To RCA Red White Audio Balun Extender Over Cat5

Product ID: 409573991

Details

Brand
LINESO
Cable type
Ethernet
Compatible devices
Headphone
Connector type
Auxiliary RCA
Special features
Braided

🎧3.5mm + RCA stereo connectors

🔄Bi-directional TX/RX pair

🔌240ft max cable reach

¥3909

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Upgrade your audio game—extend your sound, not your stress!

PRO GRADE RELIABILITY - Stable, low-latency audio with wide 10Hz-50kHz bandwidth for crystal-clear sound.
PLUG PLAY SIMPLICITY - No tech hassle—just connect and enjoy instant audio extension.
UNIVERSAL COMPATIBILITY - Works effortlessly with headphones, speakers, MP3 players, and PA systems.
EXTEND AUDIO UP TO 240 FT - Seamlessly transmit stereo sound over long distances with Cat5/6 cables.
BI DIRECTIONAL FLEXIBILITY - Each balun works as transmitter or receiver for ultimate setup freedom.

The LINESO 3.5mm Stereo to RCA Audio Balun Extender lets you effortlessly transmit high-quality stereo audio signals up to 240 feet over Cat5/6 cables. Featuring a bi-directional transmitter/receiver pair, it supports 3.5mm and RCA connectors for versatile compatibility with headphones, speakers, and professional audio systems. Designed for easy plug-and-play installation, this extender ensures reliable, low-latency sound with a broad frequency range, making it ideal for both home and professional audio setups.

Specifications

ASIN	B01HHO8382
Best Sellers Rank	#83,276 in Electronics ( See Top 100 in Electronics ) #99 in Audio/Video Receivers & Amplifiers
Brand Name	LINESO
Cable Type	Ethernet
Color	Red,White
Compatible Devices	Headphone, Music Player, Speaker
Compatible Phone Models	Headphone-equipped phones
Connectivity Technology	Auxiliary
Connector Gender	Male-to-Female
Connector Type	Auxiliary, RCA, RJ45
Customer Package Type	protected in a cardboard box
Customer Reviews	4.4 4.4 out of 5 stars (389)
Ethernet Cable Category	Cat 6
Frequency	50000 Hz
Indoor Outdoor Usage	Indoor
Item Length	250 Feet
Item Shape	Round
Item Weight	2.9 Ounces
Manufacturer	LINESO
Model	LYSB01HHO8382-ELECTRNCS
Model Name	LYSB01HHO
Number of Items	2
Number of Pins	5
Other Special Features of the Product	Braided
Part Number	LYSB01HHO8382-ELECTRNCS
Recommended Uses For Product	Home audio system installation and setup, Professional audio system installation
Specification Met	MFI
UPC	614253857085
Unit Count	2 Count

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¥3909

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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