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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want reference-grade wired listening with a jewelry-like build and a fit you can tailor to your ears, choose Technics in- Ear Monitors; if you need wireless freedom, adaptive noise cancelling, and a transmitter that connects to practically any source, choose JBL Tour One M3. Those two sentences are the whole decision — everything below explains why.
• Technics in- Ear Monitors biggest strength: a 10mm driver with an original diaphragm and magnetic fluid technology, plus an Air Control Chamber that manages internal airflow for distortion-free highs and mids with deep bass.
• Technics in- Ear Monitors biggest trade-off: it is a wired, in-ear design with no Bluetooth and no active noise cancelling — isolation comes from the ear pieces, not from electronics.
• JBL Tour One M3 biggest strength: 8-mic True Adaptive Noise Cancelling 2.0 with real-time adjustments, 70 hours of battery (40 with ANC on), and the JBL Smart Tx transmitter that reaches Bluetooth and non-Bluetooth sources alike.
• JBL Tour One M3 biggest trade-off: it is an over-ear headphone weighing 0.28 kg — far bulkier than a 7 g in-ear bud, and its feature set lives inside an app-and-transmitter ecosystem.
• Pick Technics in- Ear Monitors if you listen critically at a desk, with a DAP, amp or DAC, and want the most direct signal path possible.
• Pick JBL Tour One M3 if you travel, take calls, watch movies on a plane seat-back screen, or want one pair to cover everything wirelessly.
The EAH-TZ700 is a wired in-ear monitor, and it behaves like one. A 10mm dynamic driver uses a 5-micron-thick diaphragm built from a supple free-edge material paired with a high-strength aluminium material to suppress unwanted vibration. A titanium housing holds the driver rigidly, and the main body is magnesium diecast for vibration damping. Then there is the Air Control Chamber, which precisely controls internal airflow to balance the frequency bandwidths. In my reading of those specs, this is a design chasing low distortion and a wide, even bandwidth rather than a boosted, consumer-friendly curve.
Who should buy it: the listener with a dedicated player, a portable DAC/amp, or a good dongle; anyone who values a custom fit and recabling flexibility over wireless convenience; someone who wants isolation from a proper seal rather than from a battery. Who should skip it: if you hate cables, take calls constantly, or want noise cancelling to erase a plane cabin, this is the wrong tool. It is also a wired-only design with no app, so there is nothing to tune after the fact — you get what the acoustic engineering gives you.
JBL Tour One M3: Who It's For
The Tour One M3 Smart Tx is the opposite philosophy: a feature-dense over-ear headphone that tries to be everything at once. Two 40mm mica dome drivers cover a 20 Hz – 40 kHz range — that 40 kHz ceiling is what lets JBL call it Hi-Res Audio capable. Eight microphones, four on and in each ear cup, sample ambient noise in real time and return the inverse phase, which is how True Adaptive Noise Cancelling 2.0 makes wind, traffic and office chatter recede. When you want the world back, Ambient Aware and Talk Thru let you dial in how much of your surroundings you hear.
The genuinely unusual part is the included JBL Smart Tx. It is a universal audio transmitter with its own touch screen, so you can connect the headphones to almost any source — a seat-back entertainment system on a plane, a TV, a PC — over USB-C, or via the 3.5 mm jack for analog gear. It also works as an Auracast transmitter, so you can stream to other Auracast-enabled speakers or headphones nearby. Because the transmitter carries full controls, you can skip digging out your phone and opening an app entirely. Battery life is quoted at 70 hours of Bluetooth music and calls, dropping to 40 hours with ANC on, with a five-minute charge adding roughly five hours.
Who should buy it: frequent flyers, commuters, remote workers on calls all day, and anyone who wants one headphone for music, movies and meetings. Four adaptive beamforming mics with an AI algorithm handle voice, and the app lets you shape how you sound and how others sound to you. Who should skip it: if you listen mostly at a desk from a wired source and care about the shortest possible signal path, you are paying in complexity — and in 0.28 kg on your head — for features you may never switch on.
• Best for critical, wired listening → Technics in- Ear Monitors (10mm driver, magnetic fluid technology, Air Control Chamber).
• Best for noise cancelling → JBL Tour One M3 (8-mic True Adaptive Noise Cancelling 2.0 with real-time adjustments).
• Best for battery life → JBL Tour One M3 (70 hours, or 40 with ANC on).
• Best for fit and isolation without electronics → Technics in- Ear Monitors (round and oval ear pieces, four sizes each).
• Best for travel and multiple sources → JBL Tour One M3 (JBL Smart Tx over USB-C, 3.5 mm analog, plus Auracast sharing).
• Best for calls and meetings → JBL Tour One M3 (four adaptive beamforming mics with an AI algorithm).
• Best for upgrade paths and recabling → Technics in- Ear Monitors (balanced and unbalanced cables included, general-purpose MMCX connector).
• Best for all-day comfort with almost no weight → Technics in- Ear Monitors (7 g versus 0.28 kg).
In my opinion, these two are not really competitors — they solve different problems, and the honest answer is to pick the one that matches how you actually listen. If I had to choose a single pair for most people, I would take the JBL Tour One M3, because adaptive noise cancelling, 70 hours of battery, the Smart Tx transmitter and strong call quality cover more of daily life than any wired in-ear can. But if your listening happens at a desk with a good source, and you want the lowest-distortion, most customizable fit you can get, I would buy the Technics EAH-TZ700 instead — it is the more focused, more purist tool, and it does not pretend otherwise. Whichever way you lean, check the current price on Amazon before you commit, since that is the one variable this comparison cannot speak to.
No. It is a wired in-ear monitor with a 3.5 mm jack and MMCX connectors, and it comes with both balanced and unbalanced cables. There is no Bluetooth and no active noise cancelling — isolation comes from the ear pieces.
Yes. The included JBL Smart Tx transmitter connects to non-Bluetooth sources, and JBL also supplies a USB-C to 3.5 mm analog cable for wired analog gear. That is exactly the scenario the transmitter was built for.
The JBL Tour One M3, clearly. It has four adaptive beamforming mics with an AI algorithm to cut echoes and ambient noise, plus app controls for how you sound. The Technics is a wired listening tool with media controls, not a calling headset.
That depends on your preference. The Technics weighs 7 g and offers four sizes in two ear piece shapes, so it can vanish in your ears. The JBL is an over-ear at 0.28 kg with oval ear cushions — supportive, but noticeably more present on your head.
Not strictly — at 19 ohm impedance it is easy to drive from a phone with a dongle. But it is built to reward a better source, and the included balanced cable is there for players and amps that accept one.
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