Enisina Portable Headphone Amplifier,Equalizer HiFi earphone Amp with Audio and USB Cable

I am a huge headphone fanatic. I don’t ever do reviews but had to with this device!!!! My background: I own HD650 660s 600s and sennheiser Px 100ii - also Philips Fidelio X2. Also ARIA FOCAL 948 speakers. I purchased this little beauty of a device to work with PX 100ii and my iPod. I am a gym freak and needed good sound but with a top quality light weight headphone. For the price I was shocked! On my PX 100ii (impedance 50) they took the amplification way higher than I need which is fantastic! And it does this with no miserable distortion. No more do I have to put up with hearing other people panting on the running machine beside me. BUT the best bit is how sonically beautiful the sound is. It’s able to create a wide sound stage and depth to the music - and separate the instruments exceedingly well! To be honest I think it’s a bargain! There is no fiddling with volume as your devices volume controls the level. You do not need a bass boost and all that stuff as this packs a great punch and gives an open sound with clear mid ranges, sparkling highs that are not hurtful and thumping bass. It has a lovely blue LED light when on and a red LED light when charging. It’s small which is great - about 5 cm by 2cm. On full blast it’s lasted me at least 5 hrs in gym. It can do more I presume but I haven’t been in a gym for longer than that. Because it’s light it can be attached to your little iPod easy. I will listen to my HDs with these tomorrow but I would not be using such headphones with this amp for the gym as these headphones are too heavy for gym training AND atop expensive to be covered in sweat! So that’s why I haven’t mentioned the sound of them here - but I have the sense they could drive them reasonably. They do a better job of volume than my Topping NX5. The annoying thing with the Topping is in order to get a similar level of amplification I have to use the GAIN control and that really hurts my ears- highs are painful- so this little device does a better job of it. It’s a lovely sleek black sexy unit and I’ve purchased 3 already for spares as I love them!!!!

This blew the music sounded great at first then just blew on me contacted seller didn't even reply back dont bother cheap for a reason

Bought the product as my sony walkman mp3 player does not have sufficient volume to power my bose headphones, although this amp does not massively boost the volume it does do enough to make the headphones usable and without the walkman at full volume, I would estimate that the volume has increased by about 10 to 20 percent. It has certainly made a difference and has fulfilled my expectations, simple to use, others have said you can not charge at the same time as using it due to the sockets bieng too close together, i have found i can get both in at once but i would not need to, i would normally be away from a power supply when using it. Sound quality is excellent there is certainly no loss of clarity and the bass certainly seems to have improved a little, that may be just as a result of the increased volume, i am no expert. There is no volume control on the unit, it is very small an light and i do not find it cumbersome in use, i normally pop my mp3 player in a pocket when in use and this amp easily fits in as well no problem, as a guide it is about twice the size of a usb memory stick. It has no controls just lights, blue to show its operating, and red when charging, it powers up as soon as you plug in headphones, not when the lead from the amp to your device is plugged in (REMEMBER TO UNPLUG PHONES AFTER USE OR YOU WILL FLATTEN THE BATTERIES) so you can leave it connected to your device but not the phones. If all you need is a little boost to the output volume of your device this should do the trick. Very good value, at this price its certainly worth a try if you need a little volume boost. And the build quality seems good.

As a professional streamer and you tuber its important for me to have great sound quality. This is why I recently changed my headphones to a better set. So, When I obtained this my first thought was to give it a real test. I hooked it up to my PC with my old headphones. I immediately noticed a difference, so I removed this amplifier and tried the headphones without and sure enough there was a lack of quality and a small decrease in volume. After playing with it for a few minutes I worked out that what this does is increase the volume of the sound but without the lack of quality. Often if you turn up your volume you start to lose quality. This obvioulsy means that I can now either turn up my music a little louder or I can turn the volume down and have the level at roughly my normal listening levels. Another great feature is that it charges itself up, so no need to keep changing or charging batteries. Im also told that because it has its own power source that it reduces the power consumption on the device making it ideal for listening to music from your mobile phone or iPod. The reason I dont listen to my music on phone is to save battery life. So, my next test was to try it out. Sure enough Im noticing a big difference on my battery life, its now lasting approx 20% longer than I would expect if I was listening to music. A great little gadget, thats fairly descreet and I shall enjoy using more. What surprised me the most though was the clarity. I expected my music to be louder at a loss of quality, but Im happy to say I was wrong. Im now enjoying better quality, louder music.

My main issue is a design flaw the USB power cable and the input socket are too close together meaning the unit cannot be charged while in use. The good news is that yes it does work, and quite well there is a noticeable increase in sound quality. While there is an increase in volume it could be higher I was disappointed with the output volume level. In summary, I will use it but only until I find a better one.

So firstly, this does work to a degree. It boosts the volume as it says. it does this very basic, it just slams more voltage, so if you are wanting any sort of equilisation, don't get it. If your song goes from quiet to loud, you're going to have a very bad hearing experience and deafening. The battery only lasts about 5 to 10 hours, no where near the advertised length. The 2.5mm jack (the IN port) on TWO units i have had, had a very loose port and the cable basically falls straight out after about 10-20 usages of in and out.

Comes with a braided USB for charging and a 3.5mm to 2.5mm to plug in the amp from the phone or device. Has a good and solid feel. However the silver USB looks a little out of place with the black unit and black headphone cable, Although you can not charge and use the device at the same time ( the plugs don't fit in at the same time) and the 2.5mm side of the cable can come out easily cought or pulled. Music can be played substantially louder, at lower volumes has better base while maintaining the higher notes. Hasn't run out of battery in use yet and I've been using it for full days at a time. Over all does as it say on the tin

This is a very impressive piece of kit. Tiny. Goes between my phone and my earphones and delivers sound quality that I never expected. Takes 20 minutes to charge and lasts for hours. So simple to use. No on/off switch, it switches itself off as soon as the earphones are unplugged. Wonderful piece of equipment.

Piccolo, comodo, utile. Avevo bisogno di un piccolo aiuto in cuffia poiché l'audio del mio smartphone non mi soddisfaceva affatto.Ho voluto provare questo piccolo amplificatore sapendo che, se non soddisfatto, avrei potuto restituirlo. Ebbene.. funziona! Funziona davvero bene! Non solo amplifica circa del doppio il volume restituendo una resa eccellente in cuffia ma ho avuto la netta impressione che il suono fosse più... pulito, brillante... Allora ho voluto verificare. Ho collegato il mio mini oscilloscopio allo smartphone, ho generato un tono di test ed ho verificato senza e con il piccolo amplificatore. Come si può vedere dalle immagini che ho inserito, il suono risulta molto più pulito! Non solo non si aggiunge ronzio o distorsione, ma il suono viene ripulito e reso meglio che l'originale. Me lo terrò, davvero un ottimo apparecchio. P.S. La batteria ha una durata più che soddisfacente e si ricarica velocemente con qualunque caricatore usb.

Nach nun cirka 4 Wochen bin ich vollkommen überzeugt. Viel gibt es nicht groß zur Verarbeitung zu sagen. Hochwertig mit alugehäuse und sauber zusammengesetzt. Da kann ich mich nicht beschweren. Die beigelegten Kabel sind ein wenig kurz, wenn man das gute Stück tatsächlich mobil nutzt, lässt sich das Stück nicht vernünftig in die Hosentasche stecken, weil das kurze Kabel das Gerät immer wieder hoch zieht. Ich hätte mir einen Clip für die Hose gewünscht, sodass das Eigengewicht nicht am KH zieht, aber das kleb ich vielleicht noch an. Was man wirklich hervorheben muss ist die Akku Laufzeit. Ich hab die Box noch nicht einmal laden müssen und bestimmt schon über 20 Stunden herausgeholt. Ich weis nicht, bei welchem akkustand ich angefangen habe, weil ich es out of the Box direkt angefangen habe zu nutzen, aber die 5 Stunden laut Beschreibung schafft das Stück locker 5 mal. Die Lautstärke hebt der Verstärker um cirka 50 Prozent an, würde ich schätzen. Genau so wie ich es wollte. Es gibt keine Regler und Knöpfe. Das läuft alles über Kontakt durch die Stecker. Wie durabel das ist, wird sich zeigen. Auf jeden Fall nutze ich ihn gerne, er ist ja auch ziemlich klein und kann gut mitgenommen werden. Zu dem Preis eine Empfehlung wert. Ich hoffe dass ich noch länger Spaß mit diesem hier habe. Mein Kopfhörer von Bowers und wilkins verlangt einfach ein bischen mehr Leistung als die Schwächen iPhone Verstärker liefern, um auch lauter zu hören. Es geht zwar auch ohne eine gewisse Lautstärke, aber man muss ja nicht immer auf Anschlag hören, das fühlt sich einfach falsch an.

Es un producto de buena calidad, muy pequeño, por lo que llevarlo encima no es un problema ya que no se nota. Brinda una buena calidad de sonido y en todos los equipos que los he conectado funciona correctamente. Consejo, comprarlo, y por cierto cargarlo antes de usarlo :)

Franchement surpris par la qualité de son de ce petit boîtier. J'utilise un casque type "gaming", la prise casque de mon portable n'était pas assez puissante et m'obligeais à monter le volume presque à fond. Mais depuis que j'ai ce petit ampli c'est bien mieux ! Il fait ce qu'on lui demande de faire ! Les plus : - ça taille, rentre facilement dans ma poche. - son, design, sobre et épuré et très fonctionnel. - possibilité de s'en servir comme carte son USB sur un pc, vous aurez accès à un large choix de personnalisation sonore. - son autonomie : juste parfaite, je les laissé allumé une nuit entière pour voir et il a tenus sans broncher la journée qui a suivis. Les moins : - le câble Jack fournie, bien que très solide malgré son apparence, est très fin et pourrai se couper si manier brutalement. Mais je pense que pour le prix le boitier convient très bien !

Non mi è piaciuto il servizio di Poste Italiane. Per ben due volte ho trovato l'avviso nella cassetta delle lettere con la dicitura "mittente assente" mentre invece ero a casa entrambe le volte causa influenza. No, il postino non si è proprio preso la briga di suonare il campanello. Quindi sono dovuto andare io a ritirarlo alle poste con relativa perdita di tempo. Il piccolo amplificatore, molto economico, incrementa la pressione sonora di un buon 20-25% rispetto al normale. Viene fornito di due cavetti, uno per la ricarica ed uno che va collegato all'uscita audio del dispositivo (smartphone o lettore MP3). L'ampli è molto piccolo ed ha uno chassis in metallo. Io lo uso con un xiaomi rednote5 ed un huawei p20. Sul rednote5 funziona perfettamente mentre ho riscontrato qualche problema sul P20 causato dal connettore 3.5 che evidentemente non va d'accordo con la porta del P20 (ogni tanto si sentono dei rumori molto fastidiosi come fossero falsi contatti. In certi casi il suono diventa mono o va addirittura su un solo canale) Come dicevo, sullo Xiaomi nessun problema. Nessun problema neppure con il lettore Sony. Il suono mi ha sorpreso soprattutto per la spazialità dello spettro sonoro e per la resa corretta, senza inutili enfatizzazioni sugli estremi di banda. Peccato davvero per i problemi dati dal cavetto. Un accessorio che avrei sostituito immediatamente se solo lo avessi trovato ma pare sia molto difficile in quanto ha due minijack maschio/maschio di cui uno da 3.5 ed un altro da 2.5. Concludo dicendo che per il suo prezzo, solo 15€, è un accessorio davvero sorprendente