Made for Wired Headphones. Your device will need a headphone jack or a compatible dongle to connect the 3.5mm male plug. The World’s Smallest THX AAA Amplifier Design – Studio Quality Sound and Power from your mobile device that will breathe new life in to your favorite wired headphones anywhere you go. Honored with an Innovation Award at CES 2020, the HELM DB12 AAAMP is the world’s smallest stand-alone amplifier integrated with the THX Achromatic Audio Amplifier technology, placing an incredibly clean, linear amplifier in the palm of your hand. Made in collaboration with THX Ltd, the DB12 AAAMP features the company’s groundbreaking THX AAA feed-forward topology reducing harmonic, intermodulation, and crossover distortion by up to 40 dB for the ultimate realistic and fatigue free listening experience. Truly a plug & play amplifier that is 100% portable, turning all of your mobile devices in to pure HiFi audio on the go delivering a no-compromise headphone audio experience with the highest fidelity audio. Free support via our website for any troubleshooting, how to use or connectivity questions. NOTE: The Playback Device must support a male 3.5mm jack or compatible dongle for a 3.5mm mail jack. Mic pass through and controls will vary by device.