Hear the clinking of bullets falling at your feet or the rustling of trees as you slide your blade steadily into its sheathe. Listen to your allies' warnings seconds before you hear your enemies approach from behind. The Hyperkin Siren Headphone Amplifier attaches directly to your PS4 controller via the 3.5mm input jack, boosting the volume in your headset for maximum audibility. Built in volume control and bass adjuster make the Siren the next best thing to add to your arsenal. Audio and microphone functions may vary depending on headset.