RockIt Sounds R-50M In-Ear Monitor Balanced Armature Earphones Earbuds with Microphone DUAL DRIVER Tubular Balanced Armature speakers for state-of-the-art acoustics 2 Individual speakers on each side with a built-in crossover Light in weight but not in performance Includes 3 pairs inner silicone gels to customize the fit Designed for the music connoisseur