As one of the most popular musical instruments, drum kits' design has not changed a lot since it first emerged. However, the product contains some problems which significantly affect user experience. Not to improve the design, this project aims to dig deeper into the world of drum kit and drummers to identify their emotional values and related functional needs, hence to find new design possibilities for this classic musical instrument. Trend research, user research, and market research were conducted. The result was finalized into the fundamental emotion and related functional needs. The design vision was established, and the design was completed. The final design – Collector, is a conceptual drum kit with a new design language, which allows drummers to create their own sound library and is flexible to use in different scenarios. The design was evaluated with real drummers and was proved to be both practical and attractive. The concept shows enormous potential to be further developed into a commercial product.