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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 7 min read · Independent comparison
If you want a simple, corded pair of on-ear headphones that a kid can fold up and toss in a backpack for school, choose ELECDER i45; if you need wireless over-ear headphones with an enormous battery, EQ modes and hands-free calling, choose Picun B8.
• ELECDER i45 — biggest strength: dead-simple wired design with a 3.5mm aux jack, 40mm drivers and a foldable frame that packs down small for travel. Nothing to charge, nothing to pair.
• ELECDER i45 — biggest trade-off: no Bluetooth, no volume buttons and no microphone — you control everything from the device it's plugged into, and newer iPhones/iPads need an adapter that isn't included.
• Picun B8 — biggest strength: Bluetooth 5.3/5.4 with multipoint, a claimed 120 hours of playtime, three EQ modes and a built-in mic for calls — a true all-day wireless headphone.
• Picun B8 — biggest trade-off: it's a heavier over-ear set (12.3 oz), it has no active noise cancelling, and it needs to be charged with a basic 5V/1A or 5V/2A adapter — fast chargers are explicitly discouraged.
• Who ELECDER i45 is for: kids, teens and school use where a cheap-to-replace, plug-and-play wired headset matters more than wireless freedom.
• Who Picun B8 is for: commuters, students and remote workers who want long wireless sessions, calls and a bit of sound tuning without hunting for a cable.
The ELECDER i45 is a wired on-ear headphone built around one idea: keep it simple. There's a 3.5mm jack, a 1.5M cord, 40mm dynamic drivers, a 32-ohm impedance and a 20Hz–20kHz frequency range. That's a standard, undemanding load — the kind of thing that plays happily off a Chromebook, a school PC, a Kindle, an MP3 player, a tablet or an airplane seat jack. There is no battery at all, which means no charging ritual before class and no "it died halfway through the flight" moment.
The design details tell you who it was made for. It's an on-ear, rounded-cup headphone in red, with a nylon-and-plastic enclosure and an adjustable headband that the manufacturer says fits both kids and adults — with a recommendation that children be over eight years old. The cups fold, and the folded size is roughly 6 x 4.53 x 2.87 inches, so it genuinely disappears into a backpack pocket. Controls are described as media control via buttons with touch input, and noise handling is sound isolation rather than active cancellation — meaning it physically blocks some ambient noise by covering your ears, nothing more. There's also a one-year warranty and 24/7 email support behind it.
Picun B8: Who It's For
The Picun B8 is the opposite philosophy: wireless first, with a wired fallback. It's an over-ear headphone in black with PU leather and high-elastic sponge padding, oval earcups, a 60-degree rotating earmuff design and an adjustable headband. At 12.3 ounces it's a substantial piece of gear, but the over-ear fit spreads that weight around the ear rather than pressing on it, and the rotating cups help it sit flat when folded. It runs Bluetooth (listed as 5.3 in the feature copy and 5.4 in the spec sheet) with a range of about 33 feet, and it supports multipoint connection plus a wired 3.5mm option via the included audio cable — so you're not stranded if the battery runs down or you're on a plane with a seat jack.
The headline feature is battery life: a 1000mAh battery, about 3 hours to charge, and a claimed 120 hours of playback. Do the math and four hours of listening a day stretches to roughly a month between charges. That's the kind of number that changes how you use a headphone — you stop thinking about the charger entirely.
Sound-wise you get dual 40mm dynamic drivers, the same 32-ohm impedance as the i45, a 20Hz–20kHz range and three EQ modes (Pop, Bass Boost, Rock) cycled with a double-press of the EQ button. There's also a low-latency mode toggled by pressing power three times — useful for games and video where lip-sync matters, and the spec sheet lists audio latency at 50 milliseconds. Calls are handled by a built-in microphone with touch controls: one tap to answer, three taps to wake or dismiss the voice assistant, a three-second touch to reject. On iOS, the headphone battery level shows on screen and the on-ear "+" and "−" buttons sync to your phone's volume. Note that there's no noise cancelling here — noise control is listed as none — so this is about comfort, battery and features rather than quieting a plane cabin. One genuine caution from the maker: charge it with a 5V/1A or 5V/2A adapter only, since fast chargers can cause overheating. Picun backs it with a one-year refund guarantee, a two-year warranty and support that replies within 12 hours.
Who should buy it? Commuters, students, home-office workers and frequent travelers who want one headphone for music, movies, games and calls without babysitting a cable. Who should skip it? Someone who wants the absolute lightest, most minimal setup, or someone who needs active noise cancellation. And if you're a younger child, note the age guidance is teen and above.
• Best for school and kids → ELECDER i45. Wired, foldable, adjustable, and rated for ages eight and up.
• Best for battery life → Picun B8. Around 120 hours per charge versus no battery at all on the wired i45.
• Best for calls and meetings → Picun B8. Built-in microphone and touch call controls; the i45 has no mic.
• Best for "it just works" simplicity → ELECDER i45. Plug into a 3.5mm jack and you're done — no pairing, no charging, no firmware quirks.
• Best for travel flexibility → Picun B8. Wireless for the journey plus a 3.5mm cable for in-flight systems; the i45 is cable-only.
• Best for tuning your sound → Picun B8. Three EQ modes and a low-latency mode; the i45 gives you whatever the source sends.
• Best for lightweight, low-hassle portability → ELECDER i45. Folds to roughly 6 x 4.53 x 2.87 inches and weighs far less than the 12.3-ounce B8.
• Best for quieting the room → neither, strictly speaking. The i45 relies on passive sound isolation and the B8 has no noise cancelling; both simply cover your ears.
If I were buying for myself, I'd take the Picun B8. The combination of 120-hour battery life, Bluetooth with multipoint, a wired fallback, three EQ modes and a microphone covers the overwhelming majority of how I actually use headphones — music, calls, video and travel — in one device. In my opinion it's the more capable headphone for an adult or older teen. That said, if the buyer is a younger kid heading to school, or someone who genuinely hates charging things, the ELECDER i45 is the smarter call: it's simpler, lighter, folds smaller and never needs a cable it can't find.
Whichever way you lean, check the current price on Amazon before deciding, since that's the one factor that can flip this comparison for your budget.
how to headphones work
A headphone turns an electrical audio signal into sound using drivers — both the ELECDER i45 and Picun B8 use 40mm dynamic drivers. The i45 receives that signal over a 3.5mm wired connection, while the Picun B8 receives it wirelessly over Bluetooth 5.3/5.4 or through its included 3.5mm cable.
how to headphones on iphone
If your iPhone still has a 3.5mm headphone jack, the ELECDER i45 plugs straight in. For iPhone 7 and later, the manufacturer notes you need a Lightning-to-3.5mm adapter, which is not included. The Picun B8 avoids the issue entirely — pair it over Bluetooth and it works with iOS, where it also shows battery level on screen.
how to headphone mode off
"Headphone mode" usually just means your device is routing audio to the headset. Unplug the ELECDER i45 from the 3.5mm jack, or disconnect the Picun B8 in your phone's Bluetooth settings (or power it off) and the audio returns to the speaker.
how to headphones
Pick the connection that matches your device: the ELECDER i45 is wired-only via a 3.5mm aux jack and needs no setup, while the Picun B8 is wireless-first with Bluetooth pairing plus a 3.5mm cable in the box for wired listening. Charge the B8 with a 5V/1A or 5V/2A adapter only; the i45 never needs charging.
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