If you want simple, wired headphones for classroom devices, choose ELECDER i37; if you need a Bluetooth sleep mask that combines audio with light blocking, choose LC-dolida Luxury. For teachers, the i37 is the more practical pick for schoolwork and shared-device compatibility, while LC-dolida Luxury is for winding down or traveling rather than listening during class.
ELECDER i37 vs LC-dolida Luxury at a Glance
• ELECDER i37 — biggest strength: a foldable, wired design with a standard 3.5 mm connection for compatible classroom and personal devices. Trade-off: it has no wireless connection.
• LC-dolida Luxury — biggest strength: combines Bluetooth audio, a light-blocking eye cover, and up to 10 hours of playtime. Trade-off: it is a sleep mask, not a conventional headset for lessons or general classroom listening.
• Choose i37 if you want simple on-ear headphones for a child or teen using a device with a headphone jack.
• Choose LC-dolida Luxury if your priority is listening while resting, traveling, or blocking light.
The ELECDER i37 is a wired, on-ear headphone designed with kids and teens in mind. Its 3.5 mm jack connects to compatible laptops, PCs, tablets, smartphones, DVD players, and other devices with that socket. That makes it a sensible classroom option when students use varied equipment and you want to avoid Bluetooth pairing or charging routines. Its L-shaped plug is a practical detail for a cable connection, and the foldable design helps it pack into a school bag or suitcase.
For teachers, the i37 makes the most sense as a straightforward listening option for students doing individual work, watching instructional material, or using school devices with a 3.5 mm jack. At 5.6 ounces, it is described as lightweight, and the adjustable, foldable construction is aimed at everyday carrying. The listed audio range is 20 Hz to 20,000 Hz, with dynamic drivers and sound-isolation noise control.
Skip it if wireless listening is essential, or if you need a sleep mask, built-in light blocking, or stated long-play battery performance. The i37 is wired, so its usefulness depends on the device having a compatible headphone jack. That is a clear, simple arrangement—but it does not offer the cable-free convenience of Bluetooth.
LC-dolida Luxury is a Bluetooth sleep mask with audio built into the eye-cover design. It pairs with a phone over Bluetooth 5.4 and has dual speakers positioned to provide sound without bulky headphones pressing over the ears. The mask is designed to block light, with a contoured shape, adjustable nose pad, and elastic strap. Its stated playtime is up to 10 hours, and USB-C charging is listed as supporting three hours of playback after a 10-minute charge.
This makes it a better fit for adults who want audio while resting at home, on a flight, or in a hotel room. The Ice Fiber fabric is described as soft and breathable, with a cooling claim compared with cotton. The combination of an eye cover and audio is its defining feature: it can help create a darker, more self-contained setting for relaxation without requiring separate headphones and an eye mask.
For a teacher choosing gear for classroom use, though, this is not a direct substitute for the i37. The LC-dolida is built around covering the eyes, which is useful for sleep and travel but unsuitable for normal lesson listening or monitoring a classroom. It is also Bluetooth-only in the information provided, so it does not offer the i37’s direct wired connection to a 3.5 mm jack.
• Best for wired classroom devices → ELECDER i37. Its 3.5 mm plug suits compatible laptops, tablets, and other devices without Bluetooth pairing.
• Best for listening while resting → LC-dolida Luxury. It combines a sleep mask with Bluetooth audio and dual speakers.
• Best for students who need a conventional headset → ELECDER i37. Its on-ear format leaves the eyes uncovered and is designed for kids and teens.
• Best for blocking light during travel or sleep → LC-dolida Luxury. Its contoured mask, adjustable nose pad, and elastic strap are intended to cover the eyes.
• Best for avoiding battery management → ELECDER i37. It is wired and does not rely on wireless playback or a stated battery runtime.
• Best for cable-free listening → LC-dolida Luxury. Bluetooth 5.4 connects it to a compatible phone, with up to 10 hours of listed playtime.
• Best for packing into a school bag → ELECDER i37. Its foldable headphone design is intended for storage and travel.
• Best for a teacher’s own rest and travel routine → LC-dolida Luxury. The audio-and-eye-cover combination is more relevant for downtime than classroom instruction.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-23 · 10 min read · Independent comparison
In my opinion, I would choose the ELECDER i37 for a teacher shopping for simple classroom listening gear. Its 3.5 mm connection, foldable form, and kid-and-teen design make it the more relevant choice for school devices.
I’d choose LC-dolida Luxury for a separate purpose: listening while resting or traveling with light blocked. It is the more specialized comfort option, but not the practical classroom headset.
For classroom listening on devices with a 3.5 mm headphone jack, the i37 is the more suitable option. LC-dolida Luxury is designed as a sleep mask with Bluetooth audio, so it fits rest and travel rather than everyday teaching.
No. The i37 is wired and uses a 3.5 mm jack. Choose it when the device has a compatible headphone socket; Bluetooth is not listed for this model.
Its stated playback time is up to 10 hours. The product information also says a 10-minute USB-C charge provides three hours of playback.
It depends on what you want to do during the trip. The foldable i37 is intended to pack into a school bag or suitcase for listening, while LC-dolida Luxury combines audio with a light-blocking mask for resting.
verdict
If you want simple, wired headphones for classroom devices, choose ELECDER i37; if you need a Bluetooth sleep mask that combines audio with light blocking, choose LC-dolida Luxury. For teachers, the i37 is the more practical choice for school listening, while LC-dolida Luxury is designed for rest and travel, not classroom use.
These products serve different needs. The i37 is an on-ear headphone with a 3.5 mm plug. LC-dolida Luxury is a light-blocking sleep mask with Bluetooth audio. Choose based on whether you need a conventional headset for a compatible device or an audio-equipped mask for winding down.
• ELECDER i37 — biggest strength: foldable wired headphones with a 3.5 mm connection for compatible devices. Trade-off: no wireless connection.
• LC-dolida Luxury — biggest strength: a sleep mask that combines Bluetooth audio, light blocking, and up to 10 hours of playtime. Trade-off: it is not a conventional headset for lessons or general classroom listening.
• Choose i37 for a child or teen using a device with a headphone jack.
• Choose LC-dolida Luxury for listening while resting, sleeping, or traveling.
The ELECDER i37 is a wired, on-ear headphone designed for kids and teens. Its 3.5 mm jack connects to compatible laptops, PCs, tablets, smartphones, DVD players, and other devices with that connection. For classroom use, that makes it a straightforward option when students use compatible equipment and you want to avoid Bluetooth pairing and charging. The L-shaped plug and foldable design are practical details for carrying and storage.
For teachers, the i37 is a sensible choice for students doing individual work, listening to instructional material, or using school devices with a 3.5 mm jack. It weighs 5.6 ounces, and its listed audio range is 20 Hz to 20,000 Hz. It also has dynamic drivers and sound-isolation noise control.
Skip it if you need wireless listening, a sleep mask, or a stated battery runtime. The i37 is wired, so the device needs a compatible headphone jack. That keeps the setup simple, but it does mean the headphones are less convenient when a cable-free connection is important.
LC-dolida Luxury is a Bluetooth sleep mask with audio built into the eye-cover design. It pairs with a phone over Bluetooth 5.4 and has dual speakers intended to avoid the pressure of bulky headphones. Its contoured shape, adjustable nose pad, and elastic strap are designed for covering the eyes. The stated playtime is up to 10 hours; USB-C charging is listed as providing three hours of playback after a 10-minute charge.
This is a better fit for adults who want audio while resting at home, on a flight, or in a hotel. The Ice Fiber fabric is described as soft and breathable, with a cooling claim compared with cotton. Its main appeal is combining an eye cover with audio, rather than functioning as a general-purpose headphone.
Side-by-Side: Which Should You Choose?
• Best for wired classroom devices → ELECDER i37. Its 3.5 mm plug works with compatible laptops, tablets, and other devices.
• Best for listening while resting → LC-dolida Luxury. It pairs Bluetooth audio with a sleep mask.
• Best for students who need a conventional headset → ELECDER i37. Its on-ear design leaves the eyes uncovered and is intended for kids and teens.
• Best for blocking light during sleep or travel → LC-dolida Luxury. Its contoured mask, adjustable nose pad, and elastic strap are designed to cover the eyes.
• Best for avoiding battery management → ELECDER i37. It is wired and does not rely on wireless playback.
• Best for cable-free listening → LC-dolida Luxury. Bluetooth 5.4 connects it to a compatible phone, with up to 10 hours of listed playtime.
• Best for packing into a school bag → ELECDER i37. The foldable design is intended for storage and travel.
• Best for downtime during travel → LC-dolida Luxury. Its light-blocking mask and audio are aimed at resting, not classroom use.
If you are searching for spatial audio open ear earbuds for teachers or extra bass clip on earbuds for teachers, neither of these matches that description. The i37 is an on-ear wired headphone, while LC-dolida Luxury is a sleep mask with audio. The provided product details do not identify either as an open-ear or clip-on earbud, or specify spatial audio or an extra-bass feature.
In my opinion, I would choose the ELECDER i37 for a teacher shopping for straightforward classroom listening gear. Its 3.5 mm connection and foldable design make it the more relevant option for compatible school devices.
I’d choose LC-dolida Luxury for a different job: listening while resting or traveling with the eyes covered. It is a specialized comfort accessory, not a classroom headset.
For classroom listening on a device with a 3.5 mm headphone jack, the i37 is the more suitable option. LC-dolida Luxury is a sleep mask with Bluetooth audio, intended for rest and travel.
No. The i37 is wired and connects through a 3.5 mm jack. The device needs a compatible headphone socket.
Its stated playback time is up to 10 hours. The product information also says a 10-minute USB-C charge provides three hours of playback.
Choose based on how you plan to use it. The foldable i37 is designed to pack into a bag or suitcase for listening; LC-dolida Luxury combines audio with a light-blocking mask for resting.
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