Neoteck Portable 3.5mm Headphone Amplifier with Bluetooth 5.0 Receiver, Two-Stage Gain Switch, 16-300 Ohm HiFi Earphone Amp, Aluminum Matte Surface

Although some reviews mention a boat load of negativity, take that with a grain of salt. I purchased this unit a year ago, and have had time to see its pros and cons. I had the earlier version,(still available), about 5 years ago on my Goldwing and was skeptical until I heard what it would do with a stock Honda Goldwing stereo system. Honda put some very crappy speakers(30 amp rated 2 ohm) with very low impedance in these early bikes (2006). Coupled with an amp that did nothing for volume and depth, these were used for many years from 2001-2012 at least. With nothing to lose, I installed the earlier model along with a separate Bluetooth dongle and when I turned it on, the volume and clarity increase was dramatically increased. More bass, way more volume and thru the 4 speakers ,5.25 in, it was easily heard at highway speeds. Before? Not so much past 60mph, and became useless. The new version with BT is on my 2002 model Goldwing now. Same results but without a dongle. Even while plugged in to charge, there is no feed back or hum. Very big difference. Worth every penny, and dramatic difference to our riding even though this bike has only 2 speakers. Before this amp, she couldn’t hear much after 50 mph. Now, it is clear up to 75mph for us both. Give it a try, I can’t say anything about customer service, as I haven’t had issues with product. If it doesn’t work for you, just return it. It’s Amazon, people. Lol

As someone who's dealt with hearing difficulties since childhood, I've always struggled with the pitifully low volume from standard headphones—no matter the audio source, it just wasn't enough to catch every word in podcasts, movies, or calls. The Neoteck Headphone Amplifier with Bluetooth 5.0 receiver has been a game-changer, letting me amplify sound to comfortable levels without distortion. I bought one on a whim after years of frustration, and it worked so well I recently got a second unit—one for my iPhone during walks and another permanently connected to my TV’s audio output. If you need a volume boost, this is a must-have. What I Love (The Pros): Massive Volume Boost: It pushes sound way beyond standard headphone limits—perfect for my hearing loss. I can now enjoy clear dialogue in films or lyrics in music without maxing out my device’s volume and risking ear fatigue. Versatile Connectivity: Seamless wired inputs for my laptop, PC, or TV, plus Bluetooth 5.0 for wireless use. It auto-connects when turned on—just check your iPhone or laptop’s Bluetooth list, and it pairs in seconds with a solid 30-foot range (no dropouts in the next room). Dual-Use Convenience: Having two units is a lifesaver—one travels with my iPhone for walks, boosting podcast clarity on the go, while the other stays plugged into my TV for movie nights. Both setups are flawless. Compact and User-Friendly: Pocket-sized with simple volume and mode controls. USB-C charging while in use means no downtime—I just plug it in during long sessions. Reliable Battery Life: Each unit lasts 6-8 hours per charge, perfect for daily use, and pass-through charging ensures I never run out of juice. Affordable Lifesaver: At under $30, it’s a steal compared to pricier audiophile amps that don’t add much for everyday needs. Conclusion This amp is accessibility in a box, turning any 3.5mm wired headphones into a powerful audio solution. I’ve recommended it to friends with hearing issues, and they love it too. Whether you’re boosting TV audio or music on the go, the Neoteck delivers. I’m thrilled enough to own two—grab one if low volume’s holding you back! 5 stars!

I have an older car without stereo Bluetooth audio streaming, so for the longest time I’ve been using a blackberry music gateway and plugging that into the auxiliary 3.5 audio input. That works most of the time, however sometimes, specifically with YouTube playback, the volume can be quite low, even when turned up to the loudest setting on both my iPhone and the car radio volume dial. This solves that problem, and has a very convenient high and low gain switch! That’s a real nice touch, as I typically will keep it on low gain, but then a quick flip into high when I need to play something with lower volume from YouTube or elsewhere. The one drawback is that this thing is battery powered, which is not ideal for use in a car, since your phone won’t automatically disconnect when you turn your car off. There is however a very easy solution to this problem — you can simply open up the chassis / case of this thing and disconnect the battery from the board, which is exactly what I did. The screws are T6 I think, they were very difficult to remove, but I eventually got them out. I wish there was a convenient switch to turn the battery off! But oh well, this works and it works exactly the way I want it to. Now when my car is off, the amp / BT transmitter automatically turn off and my phone automatically disconnects from it, and vice versa when I turn my car on. I keep it plugged in to a car lighter USB port which automatically turns it on when I turn my car on. I subtracted one star for having a Micro B connector instead of type-c, and also for not having an easier way to turn the battery off, and for it being kind of difficult to get the screws out and open up the chassis…but other than that, this product is a great value and does exactly what I need it to do. I do have concerns about longevity, especially with the stupid Micro B connector, but I suppose I’ll just have to be extra careful. The audio quality is just as good as with the blackberry music gateway, it sounds great. I am also using it with a ground loop noise isolator, which is exactly what I used with my blackberry music gateway too.

He400se 'yi gayet güzel besliyor. Herhangi bir sıkıntı, dip ses vs yok. Shuoer S12 taktığımda biraz dip ses alıyorum ancak bu gayet doğal çünkü iemler düşük güç tüketimi ve yüksek hassasiyetlidir. Yani gereğinden fazla güç verirseniz dip ses duymanız doğaldır. Sarjı gayet iyi ve belirtilen sürelere kadar dayanıyor. Kendim sıradan samsung sarj aletinde masada sürekli bağlı kullanıyorum, herhangi bir statik ses yok. Ancak bilgisayarın usb girişine bağladığımda statik ses epey duyuluyor. Kısacası elektriği verdiğiniz cihaz statik sesin varlığı açısından son derece önemli. Şarja bağlı değilken herhangi bir statik ses yok. Düşük güçlerde sağ sol dengeside fiyatına göre gayet tatminkar. Gücü yaklaşık %10-15 i geçtiğinde sağ sol dengeleniyor. O değerin altındayken soldan ses biraz daha az geliyor. Bu elinize gelen üründen ürüne değişiklik gösterebilir. Genel olarak fiyatına göre gayet iyi olduğunu düşünüyorum. En azından markasız dropship ürünü değil. Kendi siteleri vs var kontrol edebilirsiniz.

Yes, "Impressive". Wired & Bluetooth both excellent with enough amplification to drive Sennheiser HD 660S2[300ohm] headphones from laptop even at low gain. Sound quality seems neutral with no noticeable distortion, Good solid well finished aluminium case and nice touch that illuminated eoteck logo subdued and not distracting. If affordable, well worth the purchase.

nessuna critica .Ottimo prodotto. Qualcuno a detto di aver difficolta sul collegamento con Bluetooth, posso affermare che nel mio caso uso il ricetrasmettitore Soomfon Mod. BT17 in funzione TX ed il collegamento in area libera supera i 20 metri, all'interno dell'appartamento va benissimo su tutta l'area nonostante le pareti divisorie e le colonne in cementarmato. Pilota benissimo le mie cuffie da 60Hom, nessuna distorsione, io lo uso per l'ascolto TV con ottimo risultato; il ritardo tra immagine e audio è impercettibile,bassissima latenza. Ottimo prodotto merita più di 5stelle. Complimenti al costruttore.

I waited 4 months before reviewing this, just to make sure my first impressions were accurate. I wanted something to drive a pair of Beyerdynamic DT-770 Pro 80Ω Limited Edition headphones, streaming FLAC audio from my Plex server via mobile/tablet. This little amp is powerful enough to drive 80Ω audiophile/studio grade headphones easily with good loudness at 2/3 full volume on normal gain, and without distortion at uncomfortably loud levels on high gain. There is some very faint almost indiscernible background hiss at high volume levels with music on pause/between tracks, but that seems to disappear as soon as signal is received. Output is very clean/flat/neutral, so much so that I started looking at my Samsung Galaxy tab Android built in Sound Profiles, and discovered that I have measurable hearing loss in my right ear at high frequencies. I now have an 'Adapt sound' profile set up to counteract that. I could try and sound all professional and audiophile, but simply put, this Amplifier paired with a decent set of headphones has transformed my mobile listening. I am hearing details I was never aware of before on music I have owned for years; music that I have listened to on various mid to high range amplifiers (e.g. Denon) and speakers (e.g. B&W) over the years. If I was trying hard to find something to complain about, I can say that Bluetooth range is mediocre, borderline reception at max 10 meters in absolute clear line of sight, but even so much as a dining room chair in between and it is down to 5 or so meters. Really not an issue for me since I have the amp right next to my mobile device, but might be good to know. Others have mentioned the quality of the volume control. I am treating mine with care, and have the amp in a hard case with my headphones when it's not in use.

Ich war auf der Suche nach einem bluetoothfähigen Kopfhörerverstärker, um einen Beyerdynamic DT770 mit 80 Ohm damit zu betreiben. Das funktioniert mit diesem Teil sehr gut. Ich nutze es beim Schlagzeugspielen zum Einspielen von Metronom oder Übungstracks. Die erreichbare Lautstärke reicht locker, der Akku hält >4h (mehr habe ich nicht getestet) und die Soundqualität passt. Rauschverhalten ist aus meiner Sicht völlig ok. Wenn ich den Verstärker voll aufdrehe, hört man natürlich ein leichtes Rauschen, aber wenn ich dann ein vernünftiges Nutzsignal anlege, fallen einem sowieso die Ohren ab... Ich kann das Teil echt empfehlen, da Preis/Leistung hier echt stimmt. Achja, Lieferung war trotz GB+Zoll usw. < 5 Tage.