OTTO Engineering Ear Loop with Adjustable Earbud Black. . Developed using some of the most extremely durable and long lasting resources in existence these Travel Accessories from OTTO Engineering can provide something that will give you a great deal of consistency. OTTO Engineering has been making high-quality products for a very long time and the OTTO Engineering Ear Loop with Adjustable Earbud is their approach to revealing how much they care. At OpticsPlanet we ensure that it is our responsibility to obtain the perfect solution for all your specifications and exhibiting the OTTO Engineering Ear Loop with Adjustable Earbud is one thing that we are happy to offer. Specifications for OTTO Engineering Ear Loop with Adjustable Earbud: Manufacturer: OTTO Engineering Color: Black Package Contents: OTTO Engineering Ear Loop with Adjustable Earbud OTTO Engineering E1-QC2NC133: Ear Loop with Adjustable Earbud Black