TDK SR50 cassette tape with high resolution and high-precision anti-resonance, 50 minutes. - Brand: TDK - Model Name: SR50 - Type: TYPE II - Characteristics: HIGH POSITION - Application: HIGH FOR CD - Bias: High Bias - Length: 50 minutes - Sound Quality Characteristics: High Resolution Unused and unopened, but has been stored at home for many years. Operation has not been confirmed due to being unopened. #cassettetape #highposition #highposi