Cyber USB Controller & Headset AC-5812 - 3.5mm jack plus USB plug controller offers universal use with enhanced features. The 3.5mm jack and audio cable can be unplugged from the USB controller for connection to smartphones, tablets, & more. USB controller provides vol + / -, speaker on/off, and mic mute with LED indicator. 2 ft. USB cable from controller to USB plug, Noise-cancelling microphone, Ambidextrous boom for left/right side use, Adjustable headband, Leatherette ear pads, Durable design, Braided cord. TYPE: Stereo headset and boom mic and Over the head, adjustable headband. FREQUENCY:Headset: 20-20,000 Hz, Microphone: 100-16,000 Hz. DRIVERS:32 mm dynamic drivers. MICROPHONE:-62 dBV/Microbar and -42 dBV/Pascal. Compatible with any USB equipped device:Laptops, PCs, Macs, and Chromebooks, Microsoft Surface, and USB equipped tablets and computers. The AC-5812 is a quality stereo headset built from the ground up, perfect for today's demanding classrooms. The CTIA compatible, 4 barrel 3.5mm jack and audio cable can be detached from the USB controller for an additional connection option to smartphones, tablets, and more. Or use the USB plug with controller for convenient in-line volume, mic and speaker mute access.