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

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Philips Fidelio X3 Professional Studio Monitor Headphones for Recording & Mixing Wired Over The Ear Open-Back Headphones, Multi-Layer 50mm Diaphragms, Hi-Res Music Studio Headset, Premium Finishing

Product ID: 220842071

Details

Brand
PHILIPS
Color
Black
Ear Placement
Over Ear
Form Factor
Over Ear
Impedance
31.97 ohm

🌐Open-back wide soundstage

🎧50mm multi-layer diaphragms

♻️Sustainably sourced leather

฿19874

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Description

🎼 Elevate your audio game — hear every detail like a true pro.

VERSATILE CONNECTIVITY - Includes detachable balanced and unbalanced oxygen-free cables plus 3.5mm to 6.3mm adapter for seamless device compatibility.
ETHICAL LUXURY MATERIALS - Sumptuous Muirhead Scottish leather headband crafted from responsibly sourced materials for premium comfort and style.
IMMERSIVE OPEN BACK DESIGN - Feel the concert hall ambiance with acoustically transparent Kvadrat fabric delivering a natural, spacious soundstage.
STUDIO GRADE PRECISION SOUND - Experience pristine highs, smooth mids, and impactful bass with advanced 50mm multi-layer polymer diaphragms.
ALL DAY FEATHER LIGHT COMFORT - Ultra-light 13.4 oz design with plush foam ear pads ensures fatigue-free listening even during marathon mixing sessions.

The Philips Fidelio X3 headphones are professional-grade, open-back studio monitors featuring 50mm multi-layer diaphragms with dampening gel for detailed, uncolored sound. Certified for Hi-Res Audio, they deliver a wide, natural soundstage through acoustically transparent Kvadrat fabric. Crafted with ethically sourced Muirhead Scottish leather and designed for all-day comfort, these wired headphones include detachable balanced/unbalanced cables and adapters, making them ideal for recording, mixing, and audiophile listening.

Specifications

ASIN	B0884XTXS8
Additional Features	Foldable
Age Range Description	Adult
Antenna Location	Music
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#10,492 in Electronics ( See Top 100 in Electronics ) #395 in Over-Ear Headphones
Brand Name	PHILIPS
Built-In Media	Cable
Cable Features	Retractable
Carrying Case Color	Black
Carrying Case Material	Leather
Color	Black
Compatible Devices	Devices with 3.5 mm audio jack or adaptable to it
Connectivity Technology	Wired Hi-Res Music Studio Headset
Control Method	Touch
Control Type	Media Control
Customer Package Type	Standard Packaging
Customer Reviews	4.3 4.3 out of 5 stars (2,571)
Earpiece Shape	around the ear
Enclosure Material	foam
Frequency Range	5 Hz - 40 kHz
Frequency Response	40000 hertz
Global Trade Identification Number	04895229102781, 14895229102788
Headphone Folding Features	Over Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	Over Ear
Impedance	31.97 ohm
Item Type Name	Headphones
Item Weight	13.4 ounces
Manufacturer	Philips
Model Name	Fidelio X3
Model Number	X3/00
Noise Control	None
Number of Items	1
Sensitivity	103
Series Number	6923410710205
Specific Uses For Product	Entertainment, Professional
Style Name	Over Ear
Theme	Studio Monitor
UPC	840063201309
Unit Count	1 Count
Warranty Description	1 year warranty
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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฿19874

Duties & taxes included

In stock

Sold byAmazon ThailandDelivered 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 Thailand.

Secure transaction

Trustpilot

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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Received my product in pristine condition. Great service overall.

1 month ago

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