If you want a durable, wired audio solution for school or travel with a clear focus on durability and simplicity, choose ELECDER i37; if you need ultra-flat, wireless earbuds specifically engineered to lie flat against your ear while sleeping on your side, choose goazzzl Flat Sleep Earbuds. These two products occupy entirely different niches in the audio world, yet both claim to solve specific listening problems. The ELECDER i37 is built as a rugged, on-ear device for younger users or those who prefer a physical connection, while the goazzzl Flat Sleep Earbuds are a specialized dual-system designed for adults who need silence during sleep without the discomfort of bulky hardware.
Deciding between them comes down to understanding whether your primary goal is reliable daytime connectivity for work or school, or nighttime comfort for restful sleep. One is a classic wired headphone that folds away into a bag, and the other is a modern Bluetooth ecosystem that fits inside the ear canal without pressing out. If you are looking for best wireless earbuds for vlogging or general daily use where battery life matters, the goazzzl offers a distinct advantage with its wireless freedom. However, if you are seeking headband headphones for vlogging or a setup that never needs charging, the ELECDER i37 provides a straightforward, plug-and-play experience that requires zero anxiety about power levels.
• ELECDER i37: Its biggest strength is the robust, wired design with sound isolation and a foldable form factor perfect for travel; its trade-off is the lack of wireless freedom and the 3.5mm jack limitation. Best for: Students, travelers, and anyone who wants a no-fuss, always-ready audio source.
• goazzzl Flat Sleep Earbuds: Its biggest strength is the dual-earbud system (flat for sleep, mini for work) with Bluetooth 5.4 and extended battery life; its trade-off is the complex setup required to manage two different earbud types. Best for: Side sleepers, light sleepers, and professionals needing discreet, all-day audio.
The ELECDER i37 is not trying to be a high-end audiophile device or a cutting-edge smart gadget. It is a functional piece of hardware designed with a specific user in mind: someone who values reliability over complexity. The inclusion of a 3.5 mm audio jack means it connects instantly to any laptop, smartphone, tablet, or DVD player without needing pairing codes or waiting for a charge. For a student rushing to class or a parent managing multiple devices in a household, this instant connectivity is a massive practical win.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-30 · 8 min read · Independent comparison
The physical design reinforces this "always ready" philosophy. Weighing in at just 5.6 ounces, these on-ear headphones are lightweight enough for long periods of wear but sturdy enough to survive being tossed into a backpack. The folding design is a critical feature for portability; it allows the headphones to shrink down significantly, fitting easily into a suitcase or school bag without taking up much space. This makes them ideal for airplane trips or car rides where screen time is needed to keep kids entertained. The plush enclosure material suggests a focus on comfort for smaller heads, and the on-ear placement ensures they stay secure without the pressure of over-ear cups.
However, this product has clear limitations that define who should skip it. The reliance on a wired connection means you are tethered to your device. If you are a runner, a dancer, or someone who moves around a lot while listening, the cable will eventually get in the way. Furthermore, the frequency range of 20 Hz to 20,000 Hz indicates a standard dynamic driver setup that handles everyday sounds well but may lack the depth expected by serious music enthusiasts. The impedance of 32 ohms is typical for consumer headphones, meaning they don't require a dedicated amplifier to drive them, but it also means they won't produce the highest fidelity output on high-end equipment. If you are looking for best headphones for vlogging where wireless movement is essential, this wired option might feel restrictive. But for static listening sessions, homework, or travel entertainment, the ELECDER i37 is a solid, no-nonsense choice that simply works.
The goazzzl Flat Sleep Earbuds represent a more sophisticated approach to personal audio, solving a problem that traditional headphones cannot: comfortable side sleeping. The core innovation here is the dual-earbud system included in a single package. You receive two distinct types of earbuds: ultra-flat sleep earbuds designed to lay flush against the ear canal, and mini earbuds optimized for work and daily activities. This versatility is a game-changer for anyone who needs audio at night but also needs to listen during the day. The flat design specifically targets side sleepers who often wake up with sore ears because standard earbuds press painfully into the pinna when lying down. By eliminating that pressure point, the goazzzl allows for uninterrupted rest, which is crucial for light sleepers.
Wireless technology plays a central role in this product's value proposition. Equipped with Bluetooth 5.4, these earbuds offer a stable connection that is likely more resistant to interference than older versions. The battery life is another standout feature, boasting an average life of 6 hours per charge, with a total capacity that reaches up to 66 hours when utilizing the charging case. This is a significant advantage over many competitors that struggle to last a full day. The ability to switch between the flat sleep buds and the mini work buds means you can use one pair while the other charges, ensuring you never run out of power when you need it most. Whether you are listening to white noise to fall asleep or taking calls at the office, the ergonomic fit keeps them secure and almost invisible.
Despite these strengths, the goazzzl is not for everyone. The complexity of managing two different pairs of earbuds might confuse some users who prefer a single, unified device. Additionally, the in-ear design, while comfortable for sleeping, may not provide the same level of ambient awareness as the on-ear ELECDER i37. If you need to hear your surroundings while working or walking, the in-ear seal could be isolating. The waterproof rating suggests durability against sweat and moisture, making them suitable for workouts, but the touch controls require a bit of finesse to operate without accidentally pausing or skipping tracks. This product is best for adults who prioritize sleep quality and seamless transitions between night and day audio needs. It is less about raw volume or bass response and more about consistent, comfortable access to sound whenever and wherever you are.
• Best for Battery Life → goazzzl Flat Sleep Earbuds, offering up to 66 hours total with the charging case compared to the endless runtime of the wired ELECDER.
• Best for Simplicity → ELECDER i37, requiring no pairing, no charging, and just a simple plug-in to start listening immediately.
• Best for Side Sleepers → goazzzl Flat Sleep Earbuds, with their unique ultra-flat profile that prevents ear pain during sleep.
• Best for Travel Portability → ELECDER i37, as the foldable design is compact and robust for packing in bags without worrying about delicate electronics.
• Best for Wireless Freedom → goazzzl Flat Sleep Earbuds, using Bluetooth 5.4 to eliminate cables entirely.
• Best for Small Ear Canals → goazzzl Flat Sleep Earbuds, designed specifically to fit snugly and invisibly in smaller ears.
• Best for Durability and Longevity → ELECDER i37, with a 1-year warranty and a build focused on withstanding rough handling by children.
• Best for Multi-Tasking → goazzzl Flat Sleep Earbuds, allowing you to switch between sleep and work modes seamlessly within one device ecosystem.
In my opinion, if I had to choose one product for my own life, I would pick the goazzzl Flat Sleep Earbuds. The reasoning is simple: the problem of uncomfortable side sleeping is a genuine pain point that affects sleep quality, and the goazzzl solves it with a clever dual-design that adds real value beyond just playing music. While the ELECDER i37 is a fantastic, reliable tool for students and travelers, the goazzzl offers a level of versatility and comfort that elevates it from a simple accessory to a lifestyle aid. The 66-hour battery life and Bluetooth 5.4 connectivity ensure it remains relevant and useful for years, whereas the wired nature of the ELECDER limits its adaptability in a wireless-first world. For anyone looking for best wireless earbuds for vlogging or simply better sleep, the goazzzl delivers a more comprehensive solution.
Yes, the goazzzl Flat Sleep Earbuds are specifically designed with an ultra-flat shape to prevent pressure on the ear when lying on your side, unlike standard earbuds.
No, the ELECDER i37 uses a 3.5 mm wired connection, so it draws power directly from your device and never needs to be charged itself.
One pair is ultra-flat for sleeping comfortably, while the other is a mini, ergonomic design intended for work and daily use, giving you two options in one package.
You will need a separate USB-C or Lightning to 3.5 mm adapter, as the ELECDER i37 relies on a standard 3.5 mm audio jack for connectivity.
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