Review on 🎧 Portable Headphone Amplifier with Bass Boost - Mini Headphone Booster with Volume Control, Rechargeable Battery, Durable Metal Casing, USB/Stereo Cables - Compatible with iPod, MP3 Players, Laptops, and Mobile Phones - Pyle PHE5AB by Mark Crawford

Yes, I read the reviews. and thought that this would never happen again. Revain must have quality checked this item after all the negative reviews! So I placed an order. Opened the slightly damaged envelope the product was packaged in, plugged it into my USB charging port, eventually the red LED went out, tried the device out (while still connected). works perfectly! DISCONNECTED from the USB port. DEAD! As other reviewers have said! So Revain is back, maybe you will discontinue this item or at least ask the manufacturer to do some quality control!