Hybrid CCA Rhapsody features a combination of two high-performance 8mm dynamic drivers on each side and four 31736 balanced armature units with a 4-mode switch design. The Rhapsody features a professional adjustable frequency filter that supports 4-stage frequency band adjustment, allowing for more than a dozen sound tuning styles. Precision customizable bass, mids, and highs. Different frequency splitting technologies bring you an amazing experience The frequency splitting technology used in CCA Rhapsody allows different drivers to achieve precise frequency splitting, improving the unideal frequency response in certain frequency ranges, providing a smooth frequency response without peaks or irregular noise. Innovative use of two dynamic drivers on one side for ultra-low and mid-range output, ensuring excellent bass output. One side features dual dynamic drivers to ensure clarity and detail in the mid-range range while providing a richer, more impactful audio experience with a lower range. This innovative driving method provides a clearer, richer bass effect, allowing your listener to feel the rhythm and ambiance of music. Balanced armature units work with high frequency and ultra high frequency accurate outputs, providing more accurate audio. Four 31736 BA units provide high and ultra high frequency sound output, providing precise and bright sound quality and allows you to listen to music details clearly. Whether it's a pop song or classic music, it can show the most authentic emotions and music effects. Powerful and proper hybrid dynamic driver creates a sound stage far better than traditional IEM. Compared to traditional configuration IEM, the Hybrid IMM has distinct advantages in sound stage, positioning and detail performance. The clear frequency splitting and interactive fusion generated by the hybrid dynamic driver provides a more impactful hearing experience for a wider sound stage and more realistic position. This allows the user to immerse deeper into the music and feel the most authentic and rich sound details. High precision and expensive 3D printed cavity. High precision 3D printing technology ensures the accuracy of the shell detail and dimensions, improving the quality and performance of the product. Achieves precise printing of complex internal ducts, providing more precise transmission to the user. Classic ergonomic design provides a secure and comfortable fit for your ears. The ergonomic design provides a secure fit on the earlobe and a comfortable experience without any pressure or restriction. Combined with memory foam eartips to effectively block outside noise, you can enjoy music comfortably and stable during long hours of work or immersed in music.