和WM-20的外型尺寸差不多，内置了FM收音功能，在带仓与磁带的间隙中嵌入了收音电路，使用耳机线做为收音天线，是索尼追求极致小型化机器的典范。

新品发行价：3万4000日元1机身尺寸：110.8×70×21.3毫米/重量：200g/电源：5号电池×1节/续航时间：4小时(使用碱性电池)

1983 SONY wm-f20 wm-20 Walkman with radio function

Similar in size to the wm-20, it has built-in FM radio function, and a radio circuit is embedded in the gap between the tape bin and the tape. It USES the headphone cable as the radio antenna, which is a model of SONY’s pursuit of extreme miniaturization.

New product launch price: ￥34,000 1 body size: 110.8×70×21.3 mm/weight: 200g/ power supply: no. 5 battery ×1 / battery life: 4 hours (using alkaline battery)

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