3068AV Switchable Stereo/Mono Headphone - The 3068 delivers performance at an economical price for 1:1 instruction in listening centers and library uses. Califone designed this headphone with the stereo/mono user switch for optimal sound quality. Use of an internal processor to attempt this function has been shown to create quality issues which can include but are not limited to: decreased frequency response, increased distortion and diminished volume levels for students. - Product Type: Headphone Technical Information - Connectivity Technology: Cable 10 ft Earpiece - Design Type: Over-the-head Binaural Interfaces/Ports - Interfaces: 3.5 mm Mini-phone Stereo Physical Characteristics - Color: Black - Weight: 9.6 oz Warranty - Standard Warranty: 1 Year(s).