具有个性独特机身的单放机型EX655进化为了EX677(可能是EX666名称已经被占用),按键采用简洁的设计排列，充电电池和碱性电池并用可连续播放50小时。
新品发行价：开放/机身尺寸：109.0×77.7×21.4毫米/重量：140克(不含电池)/ 电源口香糖电池或5号电池×1节/续航时间12小时(使用口香糖充电电池)
金属带 自动翻转 快速选曲 跳过
遥控器 充电电池重低音 DOLBY
1998 sony wm-eX677 can play 50 hours of basic single player
The single-player model EX655 with a unique and unique body evolved into EX677 (probably because the name EX666 is already occupied). The buttons are arranged in a simple design, and the rechargeable battery and alkaline battery can be used continuously for 50 hours.
New product release price: open / body size: 109.0×77.7 × 21.4 mm / weight: 140 g (excluding battery) / power gum battery or No. 5 battery × 1 cell / battery life 12 hours (using gum rechargeable battery)
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