“A1 needs no battery, hence no need to worry about recharging at all simply connect A1 with your phone and headphones, .Enjoy… — Portable Headphone Amplifier Copy Share Image
“World's Smallest Headphone Amplifier，High Quality Decoder Supports - 192KHz/24bit Headphone Amplifier- with the built-in high quality DAC(digital to analog converter)and HI-Fi sound… — Portable Headphone Amplifier Copy Share Image
