机身采用厚4.0毫米的树脂材料，卡盖是1.0毫米厚的铝合金构件，具有坚固性和抗冲击性。机身和遥控器具有JS防泡型规格，耳 机采用防滴溅设计。

新品发行价：2万9000日元/机身尺寸：113.8×89.8×30.5毫米/重量：245克/电源：口香糖电池或3号电池×1节/续航时间：3.5小时(使用口香糖充电电池)

金属带 播放  自动翻转充电电池重低音 DOLBY遥控器

1991 SONY wm-sx77 rugged construction and excellent waterproof performance long lost outdoor series walkman

The fuselage is made of 4. 0mm thick resin material, and the card cover is 1. 0mm thick aluminum alloy component, which is strong and impact resistant. The machine body and the remote control have JS anti-bubble type specification, and the ear machine adopts anti-drop splash design.

New product launch price: 29,000 yen/body size: 113.8×89.8×30.5 mm/weight: 245g/power supply: gum battery or no. 3 battery ×1 / battery life: 3.5 hours (using a gum rechargeable battery)

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