Yurbuds Ironman Focus Behind the Ear Performance Earloop Fit Sport Earphones, Black - 10200 (Bulk Packaging) Earphones that won't fall out - Guaranteed: Patented Twist Lock technology and Secure-Fit ear cradling system. Ultra-soft earphones designed to match the contours of the ear Premium sound quality with neodymium drivers and gold-plated connector Developed by athletes for athletes: Sweat-Proof and Water Resistant Earbuds Rich sound quality: Patented Twist Lock acoustics and gold plated connector