If you want simple, lightweight wired headphones for children, choose ELECDER i37; if you need a Bluetooth adapter for sharing an airplane-screen soundtrack, choose Avantree SoundJet R1-25Hr. The key difference is that these aren’t competing kinds of headphones: the i37 is a pair of on-ear headphones, while the SoundJet R1 sends audio from a 3.5 mm output to Bluetooth headphones. For children who need their own straightforward listening setup, the ELECDER is the more direct fit.
• ELECDER i37: On-ear headphones with a wired 3.5 mm connection; the trade-off is that they are not wireless.
• Avantree SoundJet R1-25Hr: Connects an analog audio output to Bluetooth headphones and can pair two sets at once; the trade-off is that you need compatible Bluetooth headphones separately.
• ELECDER i37 suits children with devices that have a headphone jack.
• Avantree SoundJet R1-25Hr suits travelers who want to use Bluetooth headphones with an airplane seat screen or another 3.5 mm audio output.
The ELECDER i37 is the more straightforward choice for children who need headphones for a tablet, laptop, Chromebook, or another device with a 3.5 mm jack. It is an on-ear, wired design with an L-shaped plug, and its foldable construction is useful when the headphones need to go into a school bag or travel case. The listed weight is 5.6 ounces.
That makes the i37 a practical option for schoolwork, entertainment on a trip, or everyday listening with a compatible device. Its wired connection avoids the need to pair headphones over Bluetooth or recharge a headphone battery. The product information lists a 32-ohm impedance and a 20 Hz–20,000 Hz frequency range, but those figures do not tell me how comfortable it will feel to a particular child or how they will perceive its sound.
Skip it if your priority is Bluetooth listening or sharing one audio source wirelessly between two headphone sets. The i37 has no wireless connection. It also needs a device with a 3.5 mm jack, so a child’s setup may require a different solution if the device lacks one.
The Avantree SoundJet R1-25Hr is an audio transmitter, not a pair of headphones. Its 3.5 mm input is meant to connect to an analog audio output, such as an airplane seat screen, gym machine, or compatible tablet. It then sends the audio to Bluetooth headphones or earbuds. That makes it a travel accessory for someone who already owns compatible wireless headphones, rather than a complete listening setup for a child.
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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-23 · 6 min read · Independent comparison
This is the better fit when wireless headphones are a must and the audio source has a 3.5 mm output. It is not designed to receive Bluetooth audio from a phone, handle calls or musical instruments, or connect to a television without a headphone output. It also does not replace the headphones themselves. For a child who simply needs headphones for school, that extra accessory and pairing step may be more than the situation calls for.
• Best for children who need a complete headphone set → ELECDER i37. It is the actual pair of on-ear headphones; the Avantree requires Bluetooth headphones or earbuds.
• Best for a device with a 3.5 mm headphone jack → ELECDER i37. Connect it directly, without relying on Bluetooth pairing.
• Best for a child’s school bag or travel case → ELECDER i37. Its foldable design is intended to make carrying and storing the headphones easier.
• Best for sharing airplane entertainment → Avantree SoundJet R1-25Hr. It can send audio from a seat-screen output to two Bluetooth headphone sets at once.
• Best for Bluetooth headphones with an analog audio source → Avantree SoundJet R1-25Hr. Its job is to transmit audio from a 3.5 mm input to Bluetooth.
• Best for listening without managing a separate adapter battery → ELECDER i37. It is wired, while the SoundJet is battery powered and lists up to 25 hours of playtime.
• Best for continuing a long listening session while charging the adapter → Avantree SoundJet R1-25Hr. USB-C pass-through charging allows it to keep operating while charging.
• Best for a simple wired option among these two → ELECDER i37. The SoundJet is useful for a different setup, but it adds a transmitter and requires compatible wireless headphones.
For searches such as “best wireless open ear headphones for children,” neither product is a direct match: the ELECDER is wired and on-ear, while the Avantree is a transmitter rather than headphones. And although the SoundJet supports aptX Adaptive and aptX HD with compatible headphones, that does not make it a pair of spatial audio headphones. The product information does not specify spatial audio. The “multipoint headphones for children” question is also worth separating from the SoundJet’s two-headphone pairing: connecting two sets to one transmitter is not the same claim as multipoint support in a pair of headphones.
I would choose the ELECDER i37 for a child who needs headphones for school, a tablet, or travel, provided the device has a 3.5 mm jack. It is a complete, foldable, wired set, which keeps the setup direct.
I’d choose the Avantree SoundJet R1-25Hr for a different job: sending airplane-screen audio to Bluetooth headphones, especially when two people want to listen together. For children as the primary use case, my pick is the ELECDER because it is the more direct headphone solution.
No. It is a Bluetooth audio transmitter that connects to a 3.5 mm audio output and sends sound to compatible Bluetooth headphones or earbuds. You need those headphones separately.
It can pair with two Bluetooth headphone sets at the same time, allowing two listeners to share audio from one source. Whether the setup works as desired depends on the connected headphones and their supported codecs.
The ELECDER i37 is the more direct option if the child’s laptop, tablet, or other device has a 3.5 mm jack. It is a wired pair of on-ear headphones and folds for storage. The SoundJet is meant to adapt an audio output for Bluetooth headphones, not serve as headphones itself.
It is a transmitter, not a Bluetooth receiver. Its listed purpose is to take audio from a 3.5 mm output and send it to Bluetooth headphones; it is not designed for phone calls.
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