How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 6 min read · Independent comparison
• Konohan 30's biggest strength: 30 individually wrapped wired on-ear headphones with adjustable headbands and rotating cups, built for shared classroom and library use.
• Konohan 30's biggest trade-off: It's wired only, with no microphone and no battery, so it's tethered to a 3.5 mm jack and can't go wireless.
• Weihele Trucker's biggest strength: A single wireless headset with Bluetooth 6.0, a USB dongle, an AI noise-cancelling boom mic, and up to 50 hours of playback.
• Weihele Trucker's biggest trade-off: It's one headset, not a bulk pack, and the mic-side controls are limited — mute and call pickup only work during phone calls, not all computer apps.
• Who Konohan 30 is for: Teachers, schools, labs, and libraries equipping many students or guests at once.
• Who Weihele Trucker is for: One driver, remote worker, or call-center user who needs a mic and untethered range.
The Konohan 30 is a classroom-first product, and the specs back that up. You get 30 black wired on-ear headphones, each sealed individually in an opp bag. That single design choice tells you a lot: it's meant for shared, rotating use where hygiene and easy distribution matter. If you run a testing room, a computer lab, or a library listening station, handing out sealed units and collecting them afterward is the whole workflow.
The build is ABS plastic with soft rubber ear pads, and the headband is adjustable to fit different head shapes without slipping. The cups rotate, which helps them sit more comfortably and adapt to more users. That's the practical core of "adjustable headphones" here — it's about fit across kids, teens, and adults in a group setting, not about tuning sound. The 3.5 mm jack and roughly 4 ft (120 cm) cable keep things simple and universal: phones, tablets, laptops, desktops, fitness equipment, listening consoles. The 32 ohm impedance and dynamic drivers with a 20–20,000 Hz range are standard fare for general listening and spoken audio.
Buy it if you need quantity, wired reliability, and no charging to manage. Skip it if you need wireless freedom, a microphone for calls, active noise cancellation, or a single premium pair for one person. This is a fleet product, not a personal one. Passive noise blocking only softens outside sound to some extent; don't expect it to silence a room.
The Weihele Trucker (model H6) is the opposite kind of purchase: one headset, built around a working day on the move. It pairs over Bluetooth 6.0 with phones and tablets, and the included USB dongle gives desktops and older PCs instant plug-and-play without native Bluetooth. That dual path is genuinely useful — you're not locked to one kind of device.
The headline feature for its namesake audience is the single-ear, open design. One ear stays free to hear traffic, GPS prompts, and surroundings while you take calls — a real safety consideration for long-haul drivers. The boom mic rotates 270° for voice pickup, and the headset claims AI noise cancelling that isolates your voice in noisy cabs or offices. There's a one-touch mute button, though note the fine print: mute and MFB call pickup work during phone calls, not reliably across computer apps or social calls.
Battery is the other strong point: a 1.5-hour charge, up to 50 hours for music and 35 hours for calls. Multipoint connection lets it hold two devices at once (say, phone and PC), with a 10 m/33 ft wireless range. The frame is lightweight with an adjustable headband, soft ear cushion, and left-or-right wear. Buy it if you want one adjustable wireless headset for driving, calls, and meetings. Skip it if you need many units, zero charging, or a wired connection — there's no 3.5 mm jack at all.
• Best for equipping a whole room → Konohan 30. 30 sealed wired units beat one wireless headset for classrooms, labs, and testing.
• Best for calls and a microphone → Weihele Trucker. The boom mic, mute button, and noise cancelling are the deciding factors.
• Best for battery life → Weihele Trucker. Up to 50 hours of music and 35 hours of calls on a 1.5-hour charge vs no battery at all.
• Best for zero setup and no charging → Konohan 30. Plug into any 3.5 mm jack and go; nothing to pair or power.
• Best for driving and situational awareness → Weihele Trucker. The single-ear open design keeps one ear on the road.
• Best for shared, hygienic use → Konohan 30. Individually wrapped, easy to distribute and rotate.
• Best for wireless range and multipoint → Weihele Trucker. 10 m range and two-device connection.
• Best for fitting many different head sizes at once → both. Each has an adjustable headband; Konohan adds rotating cups, Weihele adds a rotating boom mic and left/right wear.
My Verdict
how to adjust headphones on iphone
Adjusting headphones on an iPhone is mostly about fit and volume, not a dedicated app. With the Konohan 30, slide the adjustable headband and rotate the cups for comfort, then use the iPhone's volume buttons since it connects through the 3.5 mm jack (with an appropriate adapter on newer models). The Weihele Trucker pairs over Bluetooth, so you adjust volume on the headset buttons and in iOS settings.
how to adjust headphones
On both of these, "adjusting" starts with the headband. The Konohan 30 has an adjustable headband plus rotating cups to fit different head shapes, and the Weihele Trucker has an adjustable headband, a soft ear cushion, and a 270° rotatable boom mic you can wear on either ear. Fit first, then fine-tune volume and device settings.
how to adjust headphones volume
Volume control works differently on each. The Konohan 30 has a media control remote on its cable, and you can also use the volume rocker on whatever 3.5 mm device it's plugged into. The Weihele Trucker uses push-button controls on the headset itself, and you can additionally adjust output in your phone or computer's sound settings.
how to adjust headphones sound
Sound adjustment beyond volume depends on your source device. Neither product ships with an equalizer app, so you'd tweak EQ in your phone, computer, or app settings. The Konohan 30 uses 32 ohm dynamic drivers covering 20–20,000 Hz, and the Weihele Trucker also uses dynamic drivers — for spoken audio and general listening, both are tuned to be workable rather than audiophile-grade.
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