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. CLEAR AUDIO - Stereo headset with microphone for clear sound for both music and speech. Unidirectional noise cancelling Microphone minimizing unwanted noise while speaking or recording. Perfect for the K12 classroom, home or office. MULTI-PURPOSE CONNECTION - Simple plug and play. Connect either with USB or 3.5mm audio jack. Connect the headset with the USB control module to your Mac or PC with no software installation or connect the headset 3.5mm audio jack directly to your Mac, PC or any electronic device with a 3.5mm audio jack connection. CONVENIENT USB CONTROL MODULE - Improves sound quality in a compact design. USB connection for the headset to your PC or Mac. Easy access to Volume Up, Volume Down, Speaker Mute and Microphone Mute. ADJUSTABLE MICROPHONE BOOM - Designed to be worn with the microphone boom on the left- or right-hand side. COMFORTABLE AND DURABLE DESIGN - Comfortable fit with adjustable headband and earpads to fit most head sizes. Earpads and headband design improved for comfort over the AC-5002 and AC-5008 headsets models with same great durability. Easy to clean leatherette ear pads. Headset and tangle free braided TuffCord cable designed for hard wearing and to be long lasting for student, personal or professional use. EASY TO USE- Simply plug in and play, no installation needed. Essential part of school supplies, office supplies for the home office or in the office. INCLUDES - Cyber Acoustics AC-5812 Stereo Headset with 5 ft cable, USB Control Module with 2 ft cable and User Guide. Includes 1 year hassle free warranty.