Scott joins Leo to talk about the Helm Audio DB12 AAA pocket headphone amp. It uses THX amplifier technology. Noise measurements are far lower in total harmonic distortion than any chip-based amp. And while the price of the DB12AAA is $200, it does make a huge difference in audio from a mobile device. But since mobile phones have eliminated the headphone jack in favor of Bluetooth headphones, users would need an adapter to use it.