This headphone is custom made for Pioneer Inno and Samsung Helix XM radio receivers. The XMF5X002-HW headphone antenna is excellent when tucking the XM2go receiver in your pocket, backpack, or armband. It produces great sound quality when jogging or at an athletic event, with the easy-to-control in-line volume feature. The antenna is also "water-resistant" and its seamless integration of the wireless antenna into this custom fit design offers comfort and hands-free convenience. Package Details: Includes: • XMF5X002-HW XM Antenna Headphones for Inno and Helix Product Features: • In-Line volume control • Seamless Integration of Water-Resistent Antenna • Form-Fitting adjustable Headset Technical Specifications: Model #: XMF5X002-HW Manufacturer: PIONEER Dimensions: n/a Weight: 1 lb. Available Documentation: In order to view our radio hardware manuals online, you'll need to have Adobe's Acrobat Reader installed on your computer. If you don't yet have Acrobat Reader, please visit Adobe's web site to download the reader free of charge. none