If you want a hands-free, noise-cancelling headset you can wear through a full shift and still hear your caller, choose Garmin dēzl™ Headset 100; if you need a full-size 88-key piano for lessons, practice and playing at home, choose TERENCE Keyboard Piano 88. This is one of the strangest pairings I've ever written up — a single-ear Bluetooth work headset against a piece of digital furniture — and frankly they don't compete for the same dollar. I'll say it plainly up front: neither of these is designed for side sleepers. If you landed here looking for headphones for side sleepers, you're in the wrong aisle. Read on anyway, because by the end you'll know which of these two jobs you're actually shopping for.
Garmin dēzl™ Headset 100 vs TERENCE Keyboard Piano 88 at a Glance
• Garmin dēzl™ Headset 100 — biggest trade-off: it's a single-ear design on an over-ear frame. You get one cup, so media playback is effectively mono — no stereo image, no seal on both sides.
• TERENCE Keyboard Piano 88 — biggest strength: a full 88-key board with a semi-weighted, hammer-action mechanism, concert grand piano samples, 20W stereo speakers (10W × 2) and a three-pedal wooden stand setup in the box.
• TERENCE Keyboard Piano 88 — biggest trade-off: it's furniture. It's 123 cm wide, it wants floor space and stand assembly, and semi-weighted is not the same thing as a true acoustic graded action.
• Pick Garmin if you take calls in noisy places and need your hands free — especially in a vehicle.
• Pick TERENCE if you're learning or returning to piano and want silent practice plus a two-player mode built into one instrument.
What this thing is built to do is one job very well: keep your voice clean in a loud environment while your hands stay where they belong. The active noise cancellation sits in the ear cup, the boom mic puts the pickup right where your mouth is, and the dynamic driver covers a 20 Hz – 20,000 Hz range — wide enough for podcasts, navigation prompts and music on one ear. Bluetooth 5 with a stated 10-metre range gets you away from the phone, and 50 hours of talk time against a 2.5-hour charge means charging is a weekend habit, not a daily one. Garmin also lists a 3.5 mm jack with an aux cable in the box, so wired use is on the table.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-20 · 7 min read · Independent comparison
Buy it if you're a driver, dispatcher, site lead, or anyone who lives on the phone in a noisy place. The over-ear memory foam cushion, corrosion-resistant construction and 8.5-ounce weight read as "wear it for eight hours and forget it's there," and the included storage hook and case suggest a life spent in a cab. If you own a dēzl OTR truck navigator (sold separately), the pairing is the real draw: navigation prompts and voice commands come through the headset instead of competing with road noise.
Skip it if you want stereo music listening — one ear cup can't give you that — or if you need two-ear monitoring. And skip it if you're hunting the best with mic headphones for side sleepers or the best with microphone on ear headphones for side sleepers. A boom mic parked in front of your mouth plus a memory foam cup pressed into a pillow is a non-starter for sleeping on your side. If that's your actual goal, search for a purpose-built sleep audio product instead of a trucking headset.
This is a home piano that happens to be digital. The 88 full-size keys are force-sensitive, with a hammer-action mechanism under them and concert grand piano samples on top — TERENCE describes the action as semi-weighted, so expect a responsive, piano-like feel rather than a full acoustic-style graded action. The sound comes out of 20W of stereo amplification (10W × 2), and the included three-pedal set — sustain, soft and sostenuto — is the layout an intermediate player actually needs. Add the wooden stand, the anti-yellowing keys and the black wood finish, and it's meant to sit in a living room and look like it belongs there.
The features that surprised me most are the practice ones. Dual-Player Mode splits the keyboard into two 44-key zones with independent volume, which is genuinely useful for a teacher and student, a parent and kid, or two friends messing around. The headphone jack flips either player into silent mode instantly, which is the single most important spec for apartment practice. There's also dual-mode Bluetooth — audio in through the piano's speakers and Bluetooth MIDI out — plus USB-MIDI, a microphone input and audio input, so you can run a learning app, record, or sing and play at once.
Buy it if you're a beginner to advanced player who wants one instrument for lessons, late-night practice and family duets, with a footprint of 123 × 25 × 9 cm without the stand and 123 × 25 × 74 cm with it. Skip it if you gig and need something you can carry in one trip, if you're short on floor space, or if you expect a true weighted acoustic action — this is a hybrid feel, not a conservatory upright. Note that a headphone jack is included but headphones aren't, so budget for a pair.
Side-by-Side: Which Should You Choose?
• Best for hands-free calling → Garmin dēzl™ Headset 100. Boom mic, ANC in the cup, voice control and media controls on the headset itself.
• Best for navigation audio → Garmin dēzl™ Headset 100, if you pair it with a dēzl OTR navigator (sold separately).
• Best for quiet, late-night practice → TERENCE Keyboard Piano 88. The headphone jack and dual-player silent mode mean the house stays asleep.
• Best for two people at once → TERENCE Keyboard Piano 88. Two 44-key zones with independent volume controls; the Garmin is a one-person device.
• Best for learning and recording → TERENCE Keyboard Piano 88. Bluetooth MIDI, USB-MIDI and a mic input give you more ways in and out than most beginner boards.
• Best for portability → Garmin dēzl™ Headset 100. 8.5 ounces with a case and storage hook versus a 123 cm instrument on a stand.
• Best for side sleepers → neither. One is a single-ear work headset with a boom mic; the other is a 123 cm piano. If that's your search, this comparison ends here — and honestly, it should.
If I had to pick one of these for the reader most likely to land on this page — someone who wants a headset with a real microphone they can wear for hours — I'd buy the Garmin dēzl™ Headset 100. In my opinion the combination of active noise cancellation, a boom mic and up to 50 hours of talk time is the more useful, more durable purchase for that job, and the navigator integration gives it a second life in a vehicle. But I'll be straight with you: for side sleepers, I'd buy neither, and if piano is the goal, the TERENCE is the obvious answer because it's the only one of the two that plays a note. Check the current price on Amazon before you commit — the button on this page will take you there.
It covers a 20 Hz – 20,000 Hz range with a dynamic driver, so music sounds fine — but it's a single-ear headset. You're hearing one channel, not a stereo pair. I'd call it a calls-and-podcasts device that handles media on the side.
Yes. There's a 3.5 mm headphone jack for silent play, and Dual-Player Mode lets each of the two 44-key zones run quietly with its own volume. You'll need to supply your own headphones — none are listed in the box contents.
It does. The included components list a wooden piano stand plus sustain, soft and sostenuto pedals, along with the headphone jack, audio input, microphone input and USB-MIDI interface. With the stand fitted it measures 123 × 25 × 74 cm.
They solve different problems, so value depends entirely on the job you need done. Judge the Garmin on talk time and mic quality, and the TERENCE on action feel, pedals and practice features — then compare the current price on Amazon for whichever one fits your life.
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