Does it have a microphone and how good is it?

Works well on my phone and PC for taking calls at least.

One customer claims it has volume control. Unless I'm missing something, it does not have remote volume control.

It does not have volume control per se, but it can be configured. There are +/- buttons on the part of the cord where the mike is. The default on an iphone is those buttons skip the song forward and back. In settings/control center, you can redefine these buttons to use as volume control. I suspect that android operating systems have something similar.

Do these have same length left and right cables

Yes. The cables are the same size.

Can I get an answer on exactly how long the cord is?

1.2 meters that's from sennheisers website

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Description

🎧 Elevate your audio game with precision and style — don’t just listen, experience every beat!

CUSTOM COMFORT FIT - Includes four ear adapter sizes (XS, S, M, L) to ensure a snug, noise-isolating fit tailored just for you.
EFFORTLESS CONTROL - One-button inline smart remote lets you play, pause, and take calls without missing a beat or fumbling your phone.
SECURE IN EAR DESIGN - Ergonomically crafted to stay put during your busiest days, blocking ambient noise so you can focus on what matters.
UNIVERSAL COMPATIBILITY - Wired 3.5mm stereo jack works seamlessly with all your favorite devices, including Apple iPhone XS.
IMMERSIVE SOUND EXPERIENCE - Engineered in Germany for crystal-clear audio and deep bass that makes every track come alive.

The Sennheiser CX 300S In-Ear Headphones deliver premium sound clarity and enhanced bass through precision German engineering. Featuring a convenient one-button smart remote and four sizes of ear adapters for a personalized, secure fit, these wired headphones with a 3.5mm jack are designed for professionals who demand comfort, control, and immersive audio on the go.

Specifications

Included components	CX 100 Earphones, 4 Ear adapter Sizes (XS/S/M/L)
Age range (description)	Adult
Material	Plastic
Specific uses for product	Personal
Recommended uses for product	Music
Compatible devices	Phone
Control type	remote
Cable feature	Retractable
Item weight	0.38 Ounces
Water resistance level	Not Water Resistant
Frequency range	20 Hz - 20,000 Hz
Package type	Standard Packaging
Unit count	1.0 count
Style	In earphone
Control method	Remote
Number of items	1
Product Dimensions	1.27 x 1.27 x 1.27 cm; 10.77 g
Item model number	CX 300S White
Connector	3.5mm Jack
Material Type	Plastic
Size	One Size
Compatible Phone Models	Apple iPhone XS
Item Weight	10.8 g

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