Portable Headphone Amplifier 3.5mm Stereo Audio in/Out Support Volume Control with GAIN Switch, Rechargeable Battery, 3.5mm Headphone Amp for Switch/PS4/iPhone/PC/MP3/4 /HD 650 Headphones ect.on Sale

Headphone Amplifier listens to streaming radio stations, iTunes, personal recordings and YouTube music. Designed to help friends who need to increase their volume.

Portable Headphone Amplifier: Compact amplifier with black brushed metal case, strong structure, light and small, can easily fit into a pocket to carry it around, easy to travel.

The battery charged by Micro USB can last 15 hours and has a long battery life. Capacity: 2000mAH (3.7V). Out of the box.

There are power/volume knobs and gain switches for easy volume control, solving the difficulty of reducing the volume of the headphone jack in Windows 10.

This official Portable Headphone Amplifier 3.5mm Stereo Audio in/Out Support Volume Control with GAIN Switch, Rechargeable Battery, 3.5mm Headphone Amp for Switch/PS4/iPhone/PC/MP3/4 /HD 650 Headphones ect. is the perfect product to wear to the next game. It includes a tagless, 100% polyester cotton twill fabric, which is made to provide an authentic, unique look, with a tailored fit.

3.5mm Headphone Amplifier compatible with Nintendo Switch, PS4, iPhone, speaker, tablet, laptop, PC, Smartphone, DVD player, MP3, MP4, HD668B, DT770 PRO, HD 650, Beats Pro, MDR-7506 earphone and car AUX inputs ect.

This official Portable Headphone Amplifier 3.5mm Stereo Audio in/Out Support Volume Control with GAIN Switch, Rechargeable Battery, 3.5mm Headphone Amp for Switch/PS4/iPhone/PC/MP3/4 /HD 650 Headphones ect. is the perfect product to wear to the next game. It includes a tagless, 100% polyester cotton twill fabric, which is made to provide an authentic, unique look, with a tailored fit.