How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-24 · 6 min read · Independent comparison
• ELECDER i45's biggest strength: it's a no-fuss wired on-ear headphone with a 3.5mm jack, a foldable frame and a 1.5m cord — nothing to charge, nothing to pair.
• ELECDER i45's biggest trade-off: no volume buttons, no Bluetooth and no microphone. You control everything from your device, and newer iPhones/iPads need an adapter that isn't included.
• Glynzak Headphones Over Ear's biggest strength: Bluetooth 5.3 wireless with multi-point connection to two devices, a microphone, 6 EQ modes and a claimed 65-hour battery life.
• Glynzak Headphones Over Ear's biggest trade-off: it's an adult-oriented over-ear design that weighs 10.6 ounces and needs a 2.5-hour charge, with no active noise cancellation.
• Choose ELECDER i45 if you're buying for a school-age kid, a Chromebook or a classroom, and want a cheap-to-replace wired set.
• Choose Glynzak Headphones Over Ear if you're an adult who wants one headphone for commuting, calls, travel and laptop work without a cable.
The ELECDER i45 is a wired, on-ear headphone built around one idea: keep it simple. There's a single 3.5mm jack, a 1.5-meter cord, and that's your whole setup. No pairing, no charging, no battery to remember before school. For a parent, that's the appeal — the headphones live in a backpack and they work the moment they're plugged in.
The specs tell you what to expect. A 40mm dynamic driver, 32-ohm impedance and 95dB sensitivity, with a 20Hz–20,000Hz frequency range — a standard, easy-to-drive configuration that any phone, Chromebook, PC, Kindle or MP3 player can push without a headphone amp. The headband is adjustable for different head sizes, and ELECDER's own guidance is that kids over 8 are the sweet spot, though the adjustment range covers teens and adults too. The earcups fold down to roughly 6 x 4.53 x 2.87 inches, which makes them easy to toss in a bag for a flight or a car trip.
Glynzak Headphones Over Ear: Who It's For
The Glynzak Headphones Over Ear is aimed squarely at adults who want one pair to cover everything. It's a wireless over-ear headphone running Bluetooth 5.3, with a claimed 65-hour playtime and a 2.5-hour charge time. That combination is the headline: charge it once, and for most people that's a week or more of commuting and laptop work between charges.
The feature list is broader than the ELECDER's. There's a built-in microphone, so calls and video meetings are on the table. There's multi-point connection — the spec mentions pairing two devices and switching between calls, video and music — which is genuinely useful if you're hopping between a phone and a laptop all day. Six EQ modes let you reshape the sound without touching an app. And it still has a 3.5mm audio jack, so you can run it wired when the battery is flat or when you're on a plane with an in-seat screen.
The trade-offs are worth naming. At 10.6 ounces it's a substantial over-ear headphone, not a featherweight — fine for a desk or a commute, less ideal if you want something you forget you're wearing. There's no active noise cancellation; the spec lists noise control as "none," so isolation is whatever the over-ear cups and faux-leather padding provide passively. And the audio latency is listed at 250ms, which is fine for music and most video but worth knowing if you're sensitive to lip-sync delay in games. It's described for adults. If you want a wireless all-rounder with a mic and a big battery, this is the one.
Side-by-Side: Which Should You Choose?
• Best for school and kids → ELECDER i45. Wired, adjustable, foldable, and aimed at ages 8+.
• Best for calls and video meetings → Glynzak Headphones Over Ear. It has a built-in microphone; the ELECDER i45 has none.
• Best for "it just works" simplicity → ELECDER i45. No pairing, no charging, no app, no learning curve.
• Best for commuting and travel with a phone → Glynzak Headphones Over Ear. Wireless Bluetooth 5.3 with multi-point switching and a 10-meter range.
• Best for airplane seat screens and older devices → ELECDER i45. A plain 3.5mm jack with a 1.5m cord, no adapter or battery required.
• Best for over-ear comfort and fit → Glynzak Headphones Over Ear. Over-ear cups versus the ELECDER's on-ear design.
• Best for a no-charge backup pair → ELECDER i45. It works even if every battery in your bag is dead.
In my opinion, these two barely compete — they solve different problems. If I were buying for a kid heading to school, or I wanted a wired pair that never needs charging and costs little to replace, I'd take the ELECDER i45 without hesitating. If I were buying for myself as an adult who wants one headphone for calls, commuting, laptop work and travel, I'd take the Glynzak Headphones Over Ear. The 65-hour battery, the microphone and multi-point Bluetooth are the features I'd actually use every day, and that's what tips it for me. Check the current price on Amazon before you commit — that's the last variable that could change the math.
how to headphones work
A headphone takes an electrical audio signal and drives a speaker driver inside the earcup to produce sound. In the ELECDER i45, that signal travels down a 1.5m 3.5mm cable into a 40mm dynamic driver. In the Glynzak, the signal arrives over Bluetooth 5.3 to the same size 40mm driver, or through its 3.5mm jack when wired.
how to headphones on iphone
Plug the 3.5mm jack into the phone — but on an iPhone 7 or newer, there's no headphone port, so you need a Lightning-to-3.5mm adapter, which the ELECDER i45 does not include. The Glynzak Headphones Over Ear is easier here: pair it over Bluetooth and you're done, no adapter needed.
how to headphone mode off
"Headphone mode" usually means your device is routing audio to the headset. Unplug the 3.5mm jack on the ELECDER i45, or disconnect Bluetooth on the Glynzak, and the device switches back to its own speaker. On phones, you can also toggle the output in the sound or Bluetooth settings.
how to headphones
If you mean how to use them: charge the Glynzak for about 2.5 hours, then pair it over Bluetooth 5.3 and press the button controls. The ELECDER i45 needs no setup at all — just plug the 3.5mm jack into your phone, Chromebook, PC or tablet and adjust volume on the device itself.
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