How many drivers per ear piece are there?

From the manufacturer's website. "Using a single Balanced Armature (BA) driver allows for extremely accurate IEM without the added complexity of crossovers, and helps keep the aluminum body small and slim." So that means 1/ear to me.

I have been using Etymotic mk5 phones for a long time... would these have a similar level of comfort, or perhaps be more comfortable?

The ER3SE earphones are as comfortable as your choice of earplugs. You have a lot of options including those from other vendors. I have seen the three-lobe models, two-lobe models, foam, and made-to-order custom-fit earplugs. Personally, I found the two-lobe earplugs to be comfortable and Westone makes a very comfortable custom-fit earplug that will last for several years. If price is not a problem, I highly recommend the Westone made-to-order earplugs for the ER3SE. They provide the most comfort and the best noise isolation.

Can the main detachable peice be replaced (not the detachable foam part but the main driver)? I'm getting low volume on one side.

With low sound on one side, the first thing to do would be to replace the filter. It's probably clocked with earwax. They're replaceable and that's what they're there for. Otherwise, when I sent in a pair of earphones, they replaced the earpiece/driver on one side.

Are these good for listening to music through my phone? Or are these just made for studios?

I use them with my phone all the time. They are really good at blocking the outside noise. I love them when I'm flying.

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Etymotic Research ER3SE Studio Edition High Performance In-Ear Earphones (Detachable Balanced Armature Drivers, Noise Isolating, High Accuracy, Studio Grade Accuracy),Black

Product ID: 256211085

Details

Brand
Etymotic
Colour
Black
Ear placement
In Ear
Form factor
In Ear
Impedance
22 Ohms

🎧Balanced Armature Driver - precision sound

🔇Up to 42dB Noise Isolation - immersive focus

🔌Detachable 3.5mm Gold-Plated Cable - durable & flexible

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Description

🎶 Hear every detail, miss nothing — the pro’s choice for pure sound.

STUDIO GRADE ACCURACY - Experience pristine, neutral sound exactly as the artist intended.
UNMATCHED NOISE ISOLATION - Block out distractions with up to 42dB passive noise cancellation.
DETACHABLE REINFORCED CABLE - Easily swap cables with MMCX connectors for long-lasting use.
EFFORTLESS HIGH SENSITIVITY - Balanced armature drivers deliver detailed sound without needing an amp.
PRECISION MACHINED METAL SHELLS - Sleek anodized aluminum design built for durability and comfort.

The Etymotic Research ER3SE Studio Edition in-ear earphones feature a single high-performance balanced armature driver per channel, delivering a flat, studio-accurate frequency response from 20Hz to 16kHz. Crafted with precision-machined anodized aluminum shells and equipped with detachable, gold-plated 3.5mm cables, these earphones provide up to 42dB of passive noise isolation using foam tips. Designed for audiophiles, musicians, and sound engineers, the ER3SE offers exceptional clarity and isolation in a compact, durable form factor.

Specifications

ASIN	B07665KVD1
Additional Features	Etymotic designs products to measure, protect and improve hearing, and enhance the listening experience of music lovers everywhere. Audio engineers, musicians and audiologists at Etymotic have generated over 100 patents issued and pending.
Age Range Description	Adult
Antenna Location	Music
Audio Driver Size	6 Millimeters
Audio Driver Type	Balanced Armature Driver
Best Sellers Rank	#84,244 in Electronics ( See Top 100 in Electronics ) #3,701 in In-Ear Headphones
Brand	Etymotic Research
Built-In Media	Headphones, case, tip pack, manual
Cable Features	Detachable
Carrying Case Color	Black
Carrying Case Material	Cardboard or paper
Carrying Case Weight	150 Grams
Color	Black
Compatible Devices	Cellphones
Connectivity Technology	Wired
Control Method	Remote
Control Type	Media Control
Controller Type	Touch
Customer Package Type	Standard Packaging
Customer Reviews	4.3 4.3 out of 5 stars (329)
EU Spare Part Availability Duration	2 Years
Earpiece Shape	Rounded Tip
Enclosure Material	Metal
Frequency Range	20Hz - 16kHz
Global Trade Identification Number	00846430002104
Headphone Folding Features	In Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	In Ear
Impedance	22 Ohms
Is Autographed	No
Item Type Name	ER3SE Studio Edition In-Ear Earphones
Item Weight	0.02 Kilograms
Manufacturer	Etymotic Research
Model Name	ER3SE
Model Number	ER3SE
Noise Control	Passive Noise Cancellation
Number of Items	1
Specific Uses For Product	Studio
Style Name	SE - Studio Edition
Subject Character	no character
Theme	Audio
UPC	846430002104
Unit Count	1 Count
Water Resistance Level	Not Water Resistant

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₨4247

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered 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 Seychelles.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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