GGMM A1 Headphone Amplifier:
Most cell phones are not for hi-fi music with amps inside. However, there are many streaming music providers today, so you get music without a problem, but high-quality music is a problem. A1 is the best solution for you.
Whatever you listen to, whatever you listen through, the A1 adds vivid definition to your sound and creates a truly immersive listening experience. It brings sound back to life like never before, with processing that optimizes any audio content to deliver a richer world of detail and enjoyment for music, movies, and more.
Support almost all Android 5.0 and above micro usb port devices (note: some old or unregular smartphone maybe will not compatible with the device. Please contact with us if you're not sure does the device support your phone or not.)
Support following Android 4.0 devices:
Samsung S3 / S4 / S5 / S7 / Note3 / Note4 / Note Ede
HTC One M8 / One M8et
Sony xperia Z1 / Z2 / Z3 / Z4 / Z5
LG G2 / G3
xiaomi Mi 3 / 4