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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to give an older TV or PC a Bluetooth voice of its own and pipe the sound straight into your existing headphones, choose Gentechvvybuy Optical; if you need actual earbuds for music, calls and workouts, choose Btootos Earbuds. These two are not really rivals — they solve completely different problems — but buyers keep landing on the same search because both are cheap-looking Bluetooth audio gadgets. Here is the honest breakdown.
• Gentechvvybuy Optical — biggest strength: it is a Bluetooth 5.0 transmitter/receiver with Optical, 3.5mm AUX and Coaxial inputs, so it turns a non-smart TV or PC into a wireless audio source you can hear through your own headphones.
• Gentechvvybuy Optical — biggest trade-off: it is not a headphone. There is no speaker and no earpiece — it only works if you already own Bluetooth headphones or a Bluetooth speaker, and low latency depends on your headphones also supporting aptX Low Latency.
• Btootos Earbuds — biggest strength: real true-wireless earbuds with Bluetooth 5.4, 14.2mm dynamic drivers, ENC call noise reduction, IP7 waterproofing and up to 36 hours total playtime with the case.
• Btootos Earbuds — biggest trade-off: they are earbuds, not an audio adapter. They cannot rescue a TV that has no Bluetooth output, and the noise control is passive isolation plus ENC for calls, not active noise cancelling.
• In short: Gentechvvybuy Optical is for the person whose TV is stuck on wired audio; Btootos Earbuds are for the person who wants something to put in their ears.
The Gentechvvybuy Optical (model TX9) is a problem-solver, not a listening device. It is a Bluetooth 5.0 transmitter and receiver built around three physical audio connections: Optical TOSLINK, 3.5mm AUX and Coaxial. That means it can sit behind a TV, a PC or even a seat-back audio jack and bridge the gap between a wired audio output and a modern Bluetooth headphone. The pitch is simple and genuinely useful: watch your shows at your own volume without waking the house. If you have a non-smart or non-Bluetooth TV and a decent pair of Bluetooth headphones gathering dust, this is exactly the gadget that makes those two things talk to each other.
Who should buy it: anyone with an older TV, a PC, or even an airplane seat jack who wants to use their own Bluetooth headphones privately, and who wants a set-and-forget box with no charging to remember.
Who should skip it: anyone who does not already own Bluetooth headphones or a Bluetooth speaker. It has no speaker of its own. Also skip it if you wanted it for live music performance — the manufacturer explicitly does not recommend it for streaming while playing guitar, keyboard or electronic drums. And if your headphones lack aptX Low Latency, expect latency to be a lottery.
Btootos Earbuds: Who It's For
The Btootos Earbuds (model A90 Pro) are conventional true-wireless in-ear headphones, and for the category they cover the basics thoroughly. Bluetooth 5.4 with a stated range up to 15 metres handles the connection, with automatic pairing and multi-device compatibility. Inside each bud sits a 14.2mm low-distortion composite dynamic driver with a high-resolution decoder and AAC/SBC coding — that combination is usually what gives earbuds their bass-forward, punchy character, and 32-ohm impedance keeps them easy to drive from a phone. On calls, dual-mic ENC noise reduction is the headline feature, and it is the reason these make sense for anyone who spends the day on the phone rather than just listening.
Battery life is where they earn their keep. You get a claimed 6–8 hours per charge, with the charging case adding up to 30 hours for a 36-hour total, and the 300mAh case refills in about 1.5 hours over Type-C. The LED display on the case shows the charge level of both the case and the buds, which is a small thing that makes a real difference when you are packing for a trip. Touch controls cover the usual: skip tracks, play/pause, answer and hang up calls, and trigger the voice assistant without reaching for your phone.
Physically they are built for movement. The in-ear shape follows the ear canal, the silicone tips come in S, M and L, and the whole thing is coated to reach IP7 waterproofing — dust and rain resistant, sweat resistant, which is what you want for running or the gym. Noise control here is passive: sound isolation plus the ENC for calls, not active noise cancelling, so you will still hear the world around you. They ship with the earbuds, the charging box, three ear tip sizes, a USB-C cable and a manual, and they carry a stated 2-year warranty. The colour listed is purple.
Who should buy them: commuters, gym-goers, students, call-heavy workers — anyone who wants one pair of wireless earbuds that does music, calls and workouts without fuss.
Who should skip them: anyone who wanted true active noise cancelling, or who needed to fix a TV's audio. Earbuds cannot add Bluetooth to a TV that does not have it.
• Best for older TVs and PCs → Gentechvvybuy Optical. Optical, AUX and Coaxial inputs are the whole point.
• Best for private TV listening → Gentechvvybuy Optical. Pair your own headphones and watch at your own volume.
• Best for music, calls and workouts → Btootos Earbuds. They are actual headphones with drivers, mics and touch controls.
• Best for battery life → Btootos Earbuds. Up to 36 hours total with the case versus a transmitter that needs no battery at all but also plays nothing on its own.
• Best for low-latency TV audio → Gentechvvybuy Optical, but only if your headphones support aptX Low Latency. Otherwise treat latency as a risk.
• Best for exercise and wet weather → Btootos Earbuds. IP7 waterproofing and a sweat-resistant coating.
• Best for call clarity → Btootos Earbuds. Dual 14.2mm drivers plus ENC noise reduction on the mic path.
• Easiest to live with → depends on you. Gentechvvybuy Optical is plug-in-and-forget; Btootos Earbuds need charging but need no cables at all.
My Verdict
They do different jobs. Gentechvvybuy Optical is a Bluetooth transmitter/receiver for TVs and PCs; Btootos Earbuds are wireless headphones. Neither replaces the other.
Only if your TV already has Bluetooth audio output. They cannot add Bluetooth to a non-Bluetooth TV — that is what the Gentechvvybuy Optical adapter is for.
No. It is an adapter only, with no battery and no speakers. You must pair your own Bluetooth headphones or speaker.
Since this page does not list prices, check the current price on Amazon for both before deciding — the value question depends on what each costs on the day you buy.
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