Will the zero red have as good passive noise cancelation as the etymotic er2x ?

The outside noise blocking of the Zero:Red will not very good compared to the Etymotic ER2XR. All of Etymotic's products are designed for the maximum amount of noise blocking, the best in the industry. The Zero:Red is designed to have an overall neutral sound with a moderate bass boost. The foam eartips that are included will have the most noise blocking of all of the included eartips. However, the foam eartips may not be very comfortable compared to the included silicon eartips. For $50 USD the Zero:Red's will likely have the best audio quality compared to similarly priced IEM's. But they probably won't be the most comfortable IEM's in this price range as they are very large. You will likely need to buy better eartips if you want more comfort or sound blocking with the Zero:Red's. Comply makes the best foam tips, SpinFit makes the best silicon tips.

What tws adapters will work with these? Will the fiio utws 3 or utws 5 work?

These are 2 pin IEMs, not MMCX, so make sure you buy the 2 pin version of the UTWS 5. It doesn't look like the UTWS3 comes in a 2 pin version. Also, the connectors for the IEMs are slightly recessed so even the UTWS 5 might not connect properly. I would suggest getting a Bluetooth DAC instead and just dealing with the stock cable.

Are the reds blutooth abd which codecs do they use?

No they are Not Bluetooth, but the BTR5 will turn ang wired unit into wireless with just a little dongle clipped on your shirt or waste.

What does it come with in the box?

7 sets earbuds and a nice Pleather carry case and the 10 ohm impedance adapter, also comes with the speaker screens for replacement. It's a good package. If upgrading eartips you'll need those for wide Nozzles like the Spinfit 155s

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Fanmusic TRUTHEAR x Crinacle Zero:RED Dual Dynamic Drivers in Ear Headphone with 0.78 2Pin Cable

Product ID: 540601496

Details

Brand
Fanmusic
Colour
RED
Ear placement
In Ear
Form factor
In Ear
Impedance
17.5 Ohms

⚡High sensitivity 117.5dB/Vrms

🎧Dual dynamic drivers (10mm + 7.8mm)

🔗Copper-plated silver 0.78 2Pin cable

COP 514400

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Description

🎶 Elevate your sound game with ZERO:RED — where precision meets passion.

ERGONOMIC STYLISH - Modern in-ear design with a striking RED finish, perfect for professionals on the move.
AUDIOPHILE GRADE BUILD - DLP-3D printed sandwich cavity ensures premium soundstage usually reserved for high-end custom earphones.
PRECISION DUAL DRIVERS - Experience crystal-clear highs and deep bass with advanced polyurethane suspension composite diaphragms.
DURABLE PREMIUM CABLE - Copper-plated silver cable with thicker strands for superior signal transmission and longevity.
VERSATILE COMPATIBILITY - Seamlessly connects to desktops, smartphones, tablets, and music production gear with a 3.5mm jack.

The Fanmusic TRUTHEAR x Crinacle ZERO:RED in-ear headphones feature dual dynamic drivers with polyurethane suspension composite diaphragms and a robust copper-plated silver cable. Designed with a high-end DLP-3D printed sandwich cavity, these wired headphones deliver a wide frequency response (20Hz-40.5kHz) and high sensitivity (117.5dB), making them ideal for audiophiles and professionals seeking premium sound clarity and durability in a stylish RED form factor.

Specifications

ASIN	B0C5QWMGM6
Additional Features	Interchangeable cable
Age Range Description	Adult
Antenna Location	Cycling, Exercising, Running
Audio Driver Size	10 Millimeters
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#30,839 in Electronics ( See Top 100 in Electronics ) #1,421 in In-Ear Headphones
Brand	Fanmusic
Built-In Media	Cable
Cable Features	Retractable
Carrying Case Color	RED
Carrying Case Material	Plastic
Color	RED
Compatible Devices	Desktops, Laptops, Tablets, Smartphones, Music Production Equipment, Car Audio Systems
Connectivity Technology	Wired
Control Method	Touch
Control Type	Touch Control
Controller Type	touch control
Country of Origin	China
Customer Package Type	Protective Packaging
Customer Reviews	4.4 4.4 out of 5 stars (1,669)
Earpiece Shape	Rounded Tip
Enclosure Material	Plastic
Frequency Range	20 Hz - 20 kHz
Global Trade Identification Number	06975462650077
Headphone Folding Features	In Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	In Ear
Impedance	17.5 Ohms
Is Autographed	No
Item Weight	231 g
Manufacturer	Fanmusic
Model Name	ZERO:RED
Model Number	Zero:RED
Noise Control	None
Number of Items	1
Number of Power Levels	1
Sensitivity	117.5 dB
Specific Uses For Product	1 x
Style Name	Modern
Subject Character	no subject character
Theme	No theme
Unit Count	1.0 Count
Warranty Description	2 years
Water Resistance Level	Not Water Resistant
Wireless Technology	Wired

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COP 514400

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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