Manufacturer, Over-ear Headphones 2HP1650, Audiometer Headphones - 2HP2797, On-ear Headphones with Microphone - THP250, Two Way Radio Headsets - EM308PTT09, Ear-hook Headphones - H316, In-ear Earbuds - 2MH278, In-ear Earbuds with Microphone - 2EM591, In-ear Single Earbuds- MH300, High Impedance Ceramic Earphone - CH905, Pillow Speakers - PS609