We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-22 · 7 min read · Independent comparison
If you want a fun, kid-friendly pair of light-up wireless headphones for school, tablets and travel, choose Riwbox WT-7S; if you need a tiny adapter that turns any old 3.5mm jack — plane screens, gym TVs, a car's AUX port — into Bluetooth so your own AirPods or wireless headphones can listen, choose Twelve South AirFly Pro 2.
• Riwbox WT-7S — biggest strength: It's a complete, self-contained pair of on-ear Bluetooth headphones with 40mm drivers, LED lights that flash with the music, built-in mic, volume controls and a wired backup cable — no other gear required.
• Riwbox WT-7S — biggest trade-off: It's an on-ear, plastic-bodied headphone with no active noise cancellation and a fairly low 88 dB sensitivity, so it's aimed at casual volume use rather than critical or loud listening.
• Twelve South AirFly Pro 2 — biggest strength: It transmits or receives Bluetooth 5.3 with aptX HD Adaptive support, pairs two sets of headphones at once, and runs over 25 hours, so it fixes the one problem headphones can't: a jack that isn't wireless.
• Twelve South AirFly Pro 2 — biggest trade-off: It makes no sound on its own. It's an accessory, so it's useless to you unless you already own Bluetooth headphones or earbuds and a device with an AUX or 3.5mm output.
• Who each pick is for: The Riwbox is for kids, students and teens who want their own colorful everyday headphone. The AirFly Pro 2 is for travelers, gym-goers and drivers who want to use the headphones they already love on non-Bluetooth hardware.
The Riwbox WT-7S is a cheerful, foldable on-ear Bluetooth headphone built around a 40mm dynamic driver with a 20 Hz–20 kHz frequency range and 32-ohm impedance. Bluetooth is listed at 5.3 on the feature list and 5.4 in the spec block, with a stated 10-meter range, so within a normal room you can leave your tablet or phone on the couch and still move around. Once you've paired it, the headphone remembers the connection — no re-pairing every time you pick it up.
What really defines this model is the personality. LEDs sit on both earcups and flash up and down with the beat. If the blinking gets distracting — in a classroom, on a night flight, or when you just want to stretch the battery — you can switch the light off in Bluetooth mode to save power. The controls live on the earcups themselves: push-button media control for next/previous track and volume. When the battery runs down, you're not stuck: Riwbox includes a 3.5mm cable so you can keep listening wired.
The battery story is generous for this class. Riwbox lists a 400 mAh battery with roughly 60 hours of average life and about an hour to charge, which covers a school week or a long trip without constant topping up. Physically it's light at 210 g, folds up, and uses eco-friendly plastic with high-protein sponge pads and breathable leather — comfortable enough for on-ear wear, and the circular earcup shape gives it that friendly, toy-like look. The color is Blue and Green, and it ships in a colorful gift box, which is exactly why Riwbox frames it as a present for family.
Twelve South AirFly Pro 2: Who It's For
The AirFly Pro 2 solves a very different problem. It's a small Bluetooth 5.3 transmitter and receiver that plugs into a 3.5mm AUX or headphone jack. In transmit mode, it takes audio out of an airplane seat's entertainment screen, a gym machine's TV, a gaming console or a classic stereo and beams it to your AirPods, Beats, Sony or any Bluetooth headphones. Flip the switch to receive mode and it works the other way: your phone streams into a car or boat's AUX input — no cable, no dongle dance.
Its standout feature is dual pairing. Dedicated pairing buttons let you connect two sets of Bluetooth headphones at the same time, so two people can watch the same movie on a flight or share music and games on a road trip. That's the single biggest reason to pick this over a simple single-listener adapter.
Audio is where the Pro 2 earns its "Pro" name. It supports aptX HD Adaptive for a stable, high-quality link and low-latency playback, which matters when you're watching video and don't want lip-sync drift. Quick-access push buttons on the body let you raise or mute the volume instantly rather than digging through your phone. Battery is listed at over 25 hours, and Twelve South deliberately skipped a display to keep it small and efficient — it fits in a tech pouch or carry-on pocket, measuring about 0.43" × 1.3" × 4.25" with a 220 mAh lithium battery included.
A few practical notes from the manufacturer's guidance: keep it travel-ready by using it 30–60 minutes at least once a month, avoid fully draining it, and charge it to around 50% before long storage. It's built for airplane systems, car stereos, gym machines, laptops, headphones and classic stereo gear. Who should buy it: frequent flyers, road-trippers, gym regulars and anyone with a wired-only car or older stereo. Who should skip it: people who don't own Bluetooth headphones — it produces no sound by itself — and anyone whose hearing aids rely on Bluetooth Low Energy, since Twelve South doesn't officially support that connection.
• Best for kids and students → Riwbox WT-7S. Foldable, light at 210 g, LED lights, mic and volume buttons, in Blue and Green.
• Best for using your own AirPods on a plane → Twelve South AirFly Pro 2. It converts a seat-back screen's 3.5mm jack into a Bluetooth feed.
• Best for battery life → Riwbox WT-7S, at roughly 60 hours listed versus the AirFly Pro 2's 25+ hours. But remember these measure different things: one is a headphone, the other an adapter.
• Best for sharing audio with a companion → Twelve South AirFly Pro 2. Dual pairing for two sets of wireless headphones is something the Riwbox simply can't do.
• Best for a wired fallback → Riwbox WT-7S. The included 3.5mm cable keeps it playing after the battery dies; the AirFly Pro 2 has no such mode because it needs the jack.
• Best for upgrading an old car or boat stereo → Twelve South AirFly Pro 2. Receive mode pipes your phone into the AUX input wirelessly.
• Best for a gift → Riwbox WT-7S. It arrives in a colorful gift box and works out of the box; the AirFly needs a recipient who already owns Bluetooth headphones.
• Best for low-latency movie and gaming audio → Twelve South AirFly Pro 2, thanks to aptX HD Adaptive support and low-latency design.
In my opinion, these two aren't really rivals — they're answers to opposite questions. If you want one box that gives a kid or student a complete, bright, wire-or-wireless headphone with a mic and huge battery life, I'd buy the Riwbox WT-7S. If your problem is that your favorite headphones can't talk to a plane screen, a gym TV or your car's AUX port, no headphone purchase fixes that — I'd buy the Twelve South AirFly Pro 2. Decide which problem you actually have, and the choice becomes obvious.
Yes — that's exactly who Riwbox designed it for. It's light at 210 g, folds up, ships in a gift box, has on-earcup volume and track buttons, and includes a wired cable for when the battery runs out. The main caveat is that there's no active noise cancellation.
Yes. It supports dual pairing with dedicated buttons, so two people can listen to the same source — handy for sharing a movie on a flight or a tablet at home. Both headphones need to be Bluetooth models.
Yes. It's an adapter, not a speaker or headphone, so it makes no sound on its own. In transmit mode it sends audio to your Bluetooth headphones; in receive mode it takes audio from your phone into a wired AUX system.
They serve different buyers, so compare against your need, not against each other. For a standalone headphone, the Riwbox WT-7S is the pick; for unlocking wireless audio on wired gear, the AirFly Pro 2 is the pick. Check the current price on Amazon for both before deciding.
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