WrestleMania VII was the seventh annual WrestleMania professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF, now WWE). It took place on March 24, 1991, at the Los Angeles Memorial Sports Arena in Los Angeles. Fourteen matches were shown during the live broadcast, with one dark match held before the event.

The introduction of the WM-7 brought several new features to the Walkman range. It was the first with full electronic (logic) controls, auto-reverse, Dolby B noise reduction and a "hold" function that blocked all the keys when set. Except the tape transport motor, from the WM-2, the mechanical sections were all new.

2019年1月30日 · wm 7 索尼于1982年发布，当年发售价格36000日元，是索尼历史上第一台电控返带磁带机，做工超级扎实，全不锈钢机芯，正反铝合金机身，侧面按钮，不含电池重400多克，主导轴和压带轮巨大，走带压力大且稳定。

2017年4月1日 · wm-7 这款改进型的机器的主要特征是装备了自动反转机构，而且可以通过耳机线上的控制装置进行操作。 它同时还拥有DOLBY和轻触式操作按键，这使得机器拥有更高的声音素质以及更便于操控。

2018年1月4日 · 早就听说wm-7的大名，据说是sony第一台自动翻带的机子，只因坛子上卖的都超出预算，下不了手。 年前扫网发现一台成色还可以的尸体要4xx，卖家称加电有声音，其他不灵。

2000年7月17日 · Windows Media Player 7 Builds. Windows Media Player 9 98_2k; Windows Media Player 9 (XP) Windows Media Player 9 (NT) Windows Media Player 9 (All) Windows Media Player 9; Windows Media Player 8.0; Windows Media Player 6.4; Windows Media Player 5.1; Windows Media Player 11.0; Windows Media Player 11 …

The WM-7 is arguably the most complex of all the Walkman models. It was the first to have electronic “logic” tape transport keys and the first to offer remote control. It is also the only model to have 3 motors, though only one of them is used for tape transport .

WM-7 1982. 第一款自动翻面的随身听。 采用全新的设计，非常复杂的结构设计。 实现了很多新功能，诸如自动翻面，电子控制等。 WM-DD 1982. 著名DD系列的第一款产品，提升了减震性能和播放速度的稳定性，使音质得到很大的提升。 WM-F5 1983. 索尼的第一款防水随身听。 很特别的是它与DD DD2 DC2采用了相同的DD系统，这意味着F5也拥有不错的音质表现，另外它是DD系统中唯一带有收音功能的设备。 WM-20 1983.

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