No. There is no power involved with these headphones. The wires are plugged into a "source" like a phone, digital music player, receiver etc.

Do these comfortably fit a head that wears a hat size of 8 1/2?

Can’t say for sure as I’m 7 3/4 but I’m able to wear them comfortably for 6-8 hrs at a time. Seems plenty fo room to spare

I don't really get it, Fifelio X3 description says "balanced and unbalanced cables included", the balanced one is 2.5mm or 4.4mm?

On the headphone side, both cables are 3.5mm TRS. But on the amp side, yeah, the balanced cable terminates in a 2.5mm balanced. No idea why they made that decision, but I picked up a 2.5 balanced to 4.4 balanced converter that seems to work fine

Fidelio X3 Hi Res | Desertcart Peru

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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S/.1164

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Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your audio game — because your ears deserve the Fidelio X3 experience.

IMMERSIVE OPEN BACK DESIGN - Experience a spacious, natural soundstage that puts you in the front row of every track.
POWERFUL 50 MM ACOUSTIC DRIVERS - Feel every beat and note with finely tuned drivers delivering balanced sound and dynamic bass.
PREMIUM KVADRAT SPEAKER FABRIC - Acoustically transparent material enhances sound clarity while adding a sleek, modern look.
DETACHABLE 3 M CABLE WITH ADAPTER - Versatile wired connectivity with easy cable replacement and compatibility across all your devices.
FEATHER LIGHT COMFORT FOR LONG SESSIONS - Soft memory foam ear cushions and a plush headband ensure fatigue-free listening all day.

The Philips Fidelio X3/00 are premium over-ear headphones featuring 50mm dynamic drivers and Hi-Res Audio certification for crystal-clear, immersive sound. Their open-back design and acoustically transparent Kvadrat fabric deliver a wide, natural soundstage, while feather-light memory foam cushions provide exceptional comfort for extended listening. With a detachable 3-meter cable and versatile adapter, these wired headphones are perfect for audiophiles seeking studio-quality sound and stylish durability.

Specifications

ASIN	B0884XTXS8
Additional Features	Lightweight, Noise Isolation
Age Range Description	Adult
Antenna Location	Music
Audio Driver Size	50 Millimeters
Audio Driver Type	Dynamic Driver
Brand	PHILIPS
Built-In Media	Adapter, Cable clip, Headphones
Cable Features	Detachable
Carrying Case Color	Black
Carrying Case Material	Leather
Color	Black
Compatible Devices	Telephones, Tablets, Desktops, Laptops, Car Audio Systems
Connectivity Technology	Wired
Control Method	Touch
Control Type	Volume Control
Country of Origin	China
Customer Package Type	Standard Packaging
Customer Reviews	4.4 4.4 out of 5 stars (893)
Earpiece Shape	Over Ear
Enclosure Material	Leather Plastic
Frequency Range	20Hz - 40,000Hz
Frequency Response	40000 Hz
Global Trade Identification Number	04895229102781, 14895229102788
Headphone Folding Features	Over Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	Over Ear
Impedance	30 Ohms
Is Autographed	No
Item Type Name	Philips Fidelio X3/00 Over-Ear Headphones with Detachable Cable 3-m (Open-back Design, 50-mm Acoustic Drivers, High-Resolution Audio, Wide Soundstage, Feather-light Comfort) – 2020/2021 Model
Item Weight	13.4 Ounces
Manufacturer	TP Vision
Model Name	X3/00
Model Number	X3/00
Noise Control	None
Number of Items	1
Sensitivity	95 dB
Series Number	6923410710205
Specific Uses For Product	music
Style Name	Successor
Subject Character	no character
Theme	Studio Monitor
UPC	840063201309
Unit Count	1 Count
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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