With the portable cassette player CP13, FiiO bridges nostalgic design and modern technology. The CP13 brings a true Walkman to the market. This unique device is the result of intensive collaboration with all stakeholders in the supply chain to ensure the highest stability and quality at all levels. Special attention has been paid to the playback of analog signals, utilizing a specially designed, stable mechanism and a particularly reliable flywheel. The goal of the purely analog circuitry is to reproduce the characteristic classic analog sound as accurately as possible. The integration of Bluetooth and recording functions has been deliberately omitted to preserve the authenticity and quality of the analog sound. Instead, the thickness of the device has been optimized, and an internal lithium battery has been used, making the CP13 not only more compact but also more user-friendly. Support for various cassette types from Type I to IV emphasizes the versatility of the device. A long battery life of up to 13 hours, along with generous buttons and a tactile volume dial, completes the user experience. With its thoughtful design and focus on characteristic analog sound quality, the CP13 is both a tribute to the past and a vision for the future of music playback.