16-300 Ohm Portable Headphone Amplifier,3.5mm Jack Headphone Amp | Rechargeable Amplifier with Volume Control,Two-Stage Gain Switch, Headset Amplifier for PC/CD/MP3/MP4 Players-Non-Bluetooth

Wired earbuds are my preferred listening mode for just about everything from music to work, to just watching videos. I just picked up some new high impedance IEMs and threw this in the cart on a whim. Holy cow! It felt like I was on a magic carpet singing "a whole new world" duo with Aladdin himself. Total game changer. The gain switch is awesome for lower listening volumes, really gives the sound some punch behind it, but for higher (LOUD) listening volumes, the gain boost can 'muddy-up' the sound a bit if you're listening to bass-heavy music. Super clean sound at high volumes with the gain switch off, though. I cranked this unit for 3+ hours right out of the box before I even charged it. It's got a solid feel to it and I like how the volume knob is just a bit tight, so you can't just accidentally crank on it, volume changes need to be deliberate. The only thing I wish this had was bluetooth, because you otherwise need a janky usb.c-to-trrs adapter or a bluetooth adapter to plug into the input, paired to your phone. (Bt adapter dongle is under $20) I suppose there's probably some higher end DAC units that have bluetooth, but this thing is so awesome for the price, it's worth adding a cheapo BT dongle if you want to use it wirelessly with your phone. I had been using a cheapo bluetooth single-earbud for use with my phone, but it's really only good for podcasts & audio books, the sound quality is ok at best, and I refuse to spend three figures on BT earbuds just to listen to music. This package ended up being about $60-something for IEMs, this DAC (amp), and a $12 BT dongle, and I'm absolutely stoked about it. Top notch sound, this killer amp that seems like it will run all day, and a cheapo BT dongle with similar battery life. It's a do-it-all set up for work or play.

I bought this to replace an older unit that never delivered very much amplification. Can't say that about the Neoteck unit. It has plenty of power delivering increased amplification to my earbuds, through 15 feet of cable, with a very low volume control setting. I use it to amplify the sound from the Samsung TV with the TV volume completely turned down so that I don't disturb my sleeping wife. The unit works perfectly, and the build is quality and very solid. I especially like having a rechargeable battery to save on battery purchases. With a full charge I watched a 3 hour movie and the unit then recharged in a very short period of time. The sound quality is very good with no distortion or feedback. I am very happy with this device. Update May 2026 The amplifier no longer produces sound for the right ear. Multiple headphones and ear buds have the same problem. I contacted Neoteck customer service four days ago and have not received a response.

This is an initial out of the box review done by a pro-audio technician of 40+ yrs experience. That said, It's still IMHO. Received product and charged up. The unit appears well built and the cords are seem very adequate with nice spring strain reliefs. My sound comparsion was done using my new: [OneOdio Adapter-free Closed Back Over-Ear DJ Stereo Monitor Headphones, Professional Studio Monitor & Mixing, Telescopic Arms with Scale, Newest 50mm Neodymium Drivers- Glossy Finsh] For the sound test, I tested using the following broad range of music and sounds; 1. Also sprach Zarathustra, Op. 30-Richard Strauss; Excellent & Accurate. 2.Toccata and Fugue in D Minor, Just like I was there. Nice crisp highs and great low frequency. 3. AC/DC, Thunderstruck & Shoot to Thrill; Oh Yeah..... 4. ABBA Yep, sounds great. 5. Paranoid both GFR and BS versions, No disappointments here either. 6. Lynyrd Skynyrd- Simple Man & Free Bird - Lets face it, it would take an Awfull headphone to ruin these. That said, Front row experience. 7. IRON BUTTERFLY IN- A-GADDA-DA-VIDA, Rock ON!! I evaluated the above without the amplifier and then with. Overall, I am pleased. It does add a more "full body" listening experience. The amplification is clean and quiet. No clipping at high levels (on my headphones). Definately a good purchase for the hearing impaired. They will make good headphones sound better and Studio Grade headphones sound great. THEY WILL NOT make cheapies sound better, just louder. IMPORTANT NOTE; Using these on a headphones with smaller drivers (30mm or less) will overdrive them at higher volume levels. This amp shines best with 40 to 50mm studio grade headphones. I wouldn't spend anymore than I did though. No regrets on what I did spend and do recommend them. EDIT: There are some music selections where the amp will make the BASS sound overdriven. Most noteable is: The Island - My Name is Lincoln Extended. The drums overly BOOM. ALSO; The amp doesn't have "pass through" sound. When the switch is off, kills all sound. Should've been easy to engineer them to do this where if the battery dies, you can still listen barefoot. This is my 1 star deduction,

I have only used it briefly so far, but it seemed to work very well and provided good loud sound with the headphones I also purchased from Amazon.com during prime days.

Great little amplifier. I tested the output and it produced over 8 volts pk to pk @ 30KHz before I saw any sign of clipping. Power bandwidth was greater than 180 KHz at 3 V pk to pk. Unit is dead quiet on both normal and high gain settings. Gain was about 2.5x on low and about 6x on high. Volume was more than loud enough to drive my Sennheiser 660 S2 headphones. Best part was the sound quality. Tight, impactfull base and nice 3d sound that made it easy to discern details in space. Unit never gets warm to the touch even while charging. All this for under $50. A steal.

I've had three different small amps, one which I had to discontinue use because it would periodically short out and make left ear phone hot. This new one hasn't done that and the sound is great and the DB gain is awesome. Higher gain than any I've tried! Also having the volume control at the side rather than in the middle is great. Price and quality is A+ 6 month update the unit worked for 6 months, now I turn it on and it gets hot and no sound at all. DEAD

Worked well. We have a headphone outlet sending audio to an ATEM Mini for streaming our services. It was not a loud enough for our headphones. We added this item and used a dual out cable to feed the ATEM Mini and a set of headphones, turned the gain on and raised the volume. Now we can hear exactly what is going out on our stream.

Using with ham radio. This is amplifier only, so I use a Bluetooth adapter to use with wireless headphones.

A lot of these reviews mention a noise. As far as I can tell if you are using the device on battery power (as intended) there is no noise, like a surprising lack of noise. I am very impressed with the quality. However, There is significant noise if you power the device while using it, more so if it is plugged into a digital source like a laptop. The battery lasts about 10-14 hours for me with my 40ohm headphones, and charges in 1-2 hours. The build quality is okay for the price but is nothing to write home about. It feels quality enough to last but lacks some fit and finish. The volume knob has some resistance to it which helps when it is in your pocket. The gain switch works well and this thing can really damage your hearing so be careful. For the price you can’t beat it. Would buy again.

Molto utile per amplificare in ear sul palco durante i concerti, quando necessario. usato per 1 mese in tour e non ha dato problemi. la carica dura sicuramente abbastanza per un set di 1 ora ma penso potesse durare anche di piu'. lo ricaricavo per sicurezza. cmq bravo

Groot verschil bij wel of niet gebruiken bij smartphone. Goed volume en prima geluid! Ook makkelijk met ingebouwde accu.

Este producto me ha sorprendido. Es muy bueno y tiene mucha potencia. Lo tengo puesto para la salida frontal de auriculares del PC. Uso las salidas de uno u otro lugar según determinadas cosas y ya para jugar directamente unos cascos Logitech. Pero necesitaba dar volumen a esa salida y lo he conseguido. Da mucha mucha potencia. El ruido que se oye al ir subiendo el volumen es porque lo tenéis conectado a la corriente para cargarlo mientras lo usáis. Se desconecta y listo. Otra cosa, cuando tiene poca batería casi no amplifica, parece que se ha estropeado, pero no es así. Comprobado. Este mismo aparato lo hay con bluetooth y pensé cogerlo, pero es que no voy a llevarlo con el móvil para escuchar música por la calle. Si es para usarlo en casa vale, pero cargar con más peso no. Así que coged el que is vaya mejor o según la oferta. El pero que puse es que el cable jack que viene es muy aparente y bonito, pero se han soltado los conectores al desenchufarlo ayer para limpiar un poco la caja del PC. Dos semanas y solamente se desenchufaron dos veces contadas. Parece que el cable venía mal de fábrica pues se cayeron ambos extremos. Al final un cable nuevo pedido en amazon. Poned un cable bueno. Lo agradeceréis. Tendréis menos ruido seguro. Su cable era bueno en conexiones pero muy frágil. Una pena porque no lo encuentro suelto.

Fonctionne très bien , mieu que certain appareil a +de 100€