Portable HiFi Stereo Audio Headphone Amplifier

1. It fits easily into the smallest pockets and works with all your music devices, allowing you to take it with you anywhere while walking, jogging, cycling, or traveling by bus, train, and plane. Now for the first time you can conveniently enjoy Hi-end sound on your smartphone, MP3 player, tablet, laptop, or PC.
2. Simply connect the headphone amplifier between your headphones and your music player to enjoy great sound quality. It has more than 5 times the output power and half the output impedance of a regular phone, which means the sound will not distort no matter what headphones or volume you use.
3. The portable headphone equalizer is a link between your music player and your headphones. It is a small amplifier that can produce the kind of high-quality audio you expect from high-end audio equipment used by audiophiles and sound producers. This is the high-fidelity sound it provides.
4. It can be compatible with headphones, portable speakers, MP3, MP4, mobile phones, computers, car stereos and other audio devices that use 3.5mm plug connectors.
5. The device has a long standby time, automatically charge the detection function, there is no power button.
6. When the headset is connected, the device turns on and the system starts automatically.
7. When the earphone is taken out, the device will automatically turn off.
8. If the internal best voltage is lower than 2.5V, the system protection will automatically cut off the power.
9. Frequency: 2-27KHz.
10. Noise ratio: 95 dB.
11. Dynamic range: 90 dB.
12. Resolution: 70 dB.
13. Size: 5.5 x 2.2 x 1 cm.