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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Description

🎶 Elevate your audio game with studio precision and unbeatable silence.

SEAMLESS CONNECTIVITY - 1.5m detachable MMCX cable ensures easy replacement and tangle-free use on the go.
UNMATCHED NOISE ISOLATION - Passive noise cancellation that outperforms many active ANC models—immerse yourself fully.
STUDIO GRADE SOUND CLARITY - Experience flat, wide-range audio that honors the 'Studio Edition' legacy.
AFFORDABLE AUDIOPHILE QUALITY - Premium sound performance without the premium price tag—join the savvy sound elite.
CUSTOMIZABLE FIT DURABILITY - Includes multiple ear tips and filters with a robust metal build for all-day comfort and longevity.

The Etymotic ER3SE Studio Edition in-ear headphones deliver professional-grade balanced armature sound with a flat, wide frequency response from 20Hz to 16kHz. Featuring superior passive noise isolation that surpasses many active noise-cancelling earbuds, these wired earphones come with a detachable 1.5m MMCX cable, multiple ear tips, and filters for a customizable fit. Crafted with a durable metal housing and designed for music professionals and audiophiles alike, the ER3SE offers premium sound quality at an accessible price point.

Specifications

ASIN	B07665KVD1
Amazon 売れ筋ランキング	家電＆カメラ - 203,076位 ( 家電＆カメラの売れ筋ランキングを見る ) イヤホン - 4,226位
Bluetoothのサポートが必要な場合	いいえ
GTIN (Global Trade Identification Number)	00846430002104
UPC	846430002104
おすすめ度	4.3 5つ星のうち4.3 (336) var
お客様の年齢層	大人
イヤホンの形状	丸みを帯びた先端。
インピーダンス	22 オーム
オーディオドライバのサイズ	6 ミリメートル
オーディオドライバーの種類	バランスドアーマチュア型ドライバー
カラー	ブラック
キャリングケースの色	ブラック
キャリングケースの重量	150 グラム
ケーブルの特徴	脱着式
コントロール	メディアコントロール
サイン入り	いいえ
スタイル名	本体のみ
テーマ	オーディオエンジニアリング。
ノイズ制御	パッシブノイズキャンセリング
ハードウェアインタフェース	3.5ミリオーディオ
パック数	1
ブランド名	Etymotic Research
ヘッドフォンの耳が当たる位置	インイヤー
ヘッドフォンジャック	3.5mmジャック
ヘッドホン/イヤホンスタイル	インイヤー
メーカー名	エティモティック(Etymotic)
メーカー型番	ER3SE
モデル名	ER3SE
ユニット数	1.0 個
互換デバイス	携帯電話
付属品総数	1
入力装置インターフェイス	オーディオジャック。
同梱商品	イヤークッション
周波数範囲	20Hz - 16kHz。
商品の推奨用途	音楽。
商品の用途	スタジオ。
商品の追加説明1	防汗
商品の重量	0.02 キログラム
商品外装素材	金属
商品種別	ER3SE Studio Edition インイヤーイヤホン
型番	ER3SE
梱包タイプ	スタンダードパッケージング
無線タイプ	Bluetooth
管理方法	遠隔
通信・接続インターフェース	有線
防水タイプか否か	非防水
騒音制御機能	passive_noise_isolation。

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