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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-26 · 8 min read · Independent comparison
• MEE audio KidJamz KJ45BT — biggest strength: A built-in volume limiter that holds sound pressure below the recommended 85 dB, plus wired and wireless flexibility and a 36-hour battery.
• MEE audio KidJamz KJ45BT — biggest trade-off: It is a kids' product with no noise cancelling and a plastic on-ear build, so it is not aimed at adult listeners or serious audio quality.
• Aurotlu Open Ear — biggest strength: An open on-ear hook design that leaves your ear canal free, with Bluetooth 5.4, IPX7 water resistance and a charging case that extends playtime.
• Aurotlu Open Ear — biggest trade-off: Because nothing seals your ear, bass and isolation are limited, and the short warranty period is a real consideration for heavy daily use.
• Who each pick is for: Parents buying for a child aged 4+ should look at the MEE audio KidJamz KJ45BT; adult runners, walkers and gym users should look at the Aurotlu Open Ear.
The KidJamz KJ45BT is a purpose-built children's headset, and everything about it flows from that. The core feature is the volume-limiting technology: it keeps sound pressure below the recommended 85 dB limit, which is the whole reason a parent would pick this over a generic pair of headphones. There is also a hidden control that lets a parent temporarily disable the limiter, which matters on a noisy plane or in a car where 85 dB simply gets drowned out. That is a thoughtful detail — the limiter is a default, not a cage.
Comfort and durability are clearly designed around kids aged 4 and up. The headband adjusts, the earcups swivel, and both the earpads and headband cushion are padded. The construction uses fewer moving parts, a wear-resistant finish, and a flexible headband that can be bent and twisted in any direction without breaking. If you have ever watched a child yank a headset off by one earcup, you understand why that matters. At 4.8 ounces it is light enough for small heads, the driver is a 40 mm dynamic unit with a 20 Hz–20 kHz range, and the fit is on-ear rather than over-ear.
Who should buy it: parents and grandparents shopping for a child around 4 or older who needs a headset for school, online classes, travel or tablet use, and who specifically want hearing protection built in. Who should skip it: adults, teens who care about sound quality, anyone who wants active noise cancelling (there is none here), and anyone who wants a sealed, isolating listening experience.
Aurotlu Open Ear: Who It's For
The Aurotlu Open Ear takes the opposite approach: instead of sealing sound in, it deliberately lets the world in. The open over-ear hook design sits outside the ear canal, so you hear music and your surroundings at the same time. For runners, cyclists and anyone exercising near traffic, that is not a compromise — it is the point. It also solves the sore-ear problem that comes from jamming buds into your canal for hours, because nothing is plugged in.
Connectivity is modern: Bluetooth 5.4, which the brand describes as faster and more stable with seamless pairing, low latency and solid synchronization. Controls are touch-based, so a tap handles playback and calls rather than a physical button you have to hunt for. Audio comes from 16.3 mm dynamic drivers, which is a large driver for this category and is aimed at giving you fuller stereo sound and clear voice pickup on calls.
Battery and charging are handled in two stages. Aurotlu rates 12 hours of continuous play per charge, 48 additional hours from the included magnetic charging case, and up to 80 hours of standby — the headline 60-hour figure comes from combining the buds and the case. The case recharges in about an hour over USB Type-C, and there is an LED digital display so you can see the charge level instead of guessing. IPX7 water resistance means sweat and rain are not a problem, which lines up with the walking, running and sport positioning.
Who should buy it: adults who want open-ear sport headphones for running, walking, cycling, gym work or long office days, and who value hearing their environment. Who should skip it: anyone who wants deep bass and full isolation, anyone who dislikes touch controls, and anyone who wants a long warranty — the stated coverage here is only 3 months, which is short, and the target age range is explicitly adult.
Side-by-Side: Which Should You Choose?
• Best for awareness of your surroundings → Aurotlu Open Ear. The open design keeps your ear canal free so traffic and conversation come through.
• Best for battery life → MEE audio KidJamz KJ45BT on a single charge at 36 hours, though Aurotlu Open Ear wins on total system capacity once you count the charging case.
• Best for workouts and weather → Aurotlu Open Ear. IPX7 water resistance and a secure ear-hook fit are built for sweat and rain; the KidJamz is a kids' indoor/commute product.
• Best for device compatibility → MEE audio KidJamz KJ45BT. Bluetooth plus a 3.5 mm jack covers tablets, consoles, MP3 players and older laptops that have no Bluetooth at all.
• Best for calls and online classes → MEE audio KidJamz KJ45BT if a child needs a mic with simple on-headset buttons; Aurotlu Open Ear is the better pick for an adult taking calls while moving.
• Best for a durable, kid-proof build → MEE audio KidJamz KJ45BT. The flexible, twist-any-direction headband and reduced moving parts are aimed squarely at rough handling.
• Best for comfort over long sessions → Aurotlu Open Ear for adults, since nothing enters the ear canal; the KidJamz is comfortable but sized and tuned for kids.
In my opinion, these two are not really competitors — they solve different problems, and the right answer depends entirely on who is wearing them. For a child, I would buy the MEE audio KidJamz KJ45BT: the volume limiter, the bendable build, the 36-hour battery, the microphone and the 3.5 mm fallback make it the more complete, more protective package for school, travel and tablets. For myself or another adult who runs, walks or trains, I would buy the Aurotlu Open Ear: the open fit, Bluetooth 5.4, IPX7 rating and charging case fit an active lifestyle far better. If you are buying for a kid, go MEE audio. If you are buying for your own ears on the move, go Aurotlu.
how do wireless bluetooth headphones work
A wireless Bluetooth headphone pairs with a phone, tablet or computer over a short-range radio link — the KidJamz KJ45BT uses Bluetooth 5 with about 10 meters of range, and the Aurotlu Open Ear uses Bluetooth 5.4. The device sends the audio digitally, and the headphones' built-in drivers turn it into sound. No cable is required, though the KidJamz also accepts a 3.5 mm cable.
how to put wireless headphones in pairing mode
The general routine is to power the headphones on and hold the power or multi-function control until the indicator starts flashing, which puts them in discoverable mode. Both of these models are wireless Bluetooth headsets, and the Aurotlu adds touch controls plus a charging case with an LED display. Exact button combinations vary, so check the manual that ships in the box.
how connect bluetooth headphones to phone
Turn the headphones on and put them in pairing mode, then open your phone's Bluetooth settings, let it scan, and select the headphone name from the list. Once paired, both the KidJamz KJ45BT and the Aurotlu Open Ear reconnect automatically the next time they are powered on within range. If the connection drops, toggling Bluetooth off and on usually fixes it.
how to connect sony wh ch520 on ear wireless bluetooth headphones
That model is a different brand, but the process is the same as any Bluetooth on-ear headset: power it on, hold the control until the light flashes, then pick it from your phone's Bluetooth menu. Step-by-step instructions for a specific model live in that product's own manual. For the two headphones compared here, the KidJamz KJ45BT and the Aurotlu Open Ear, the same pairing steps apply.
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See also: Puro Sound Labs vs Aurotlu Open Ear: Wireless on Ear, ENCASED Thore Over Ear vs MEE audio KidJamz Share, Kinglucky Open-Ear Clip-On Earbuds vs Jacuate Clip-on Earbuds Open