GRN制作一系列手摇音频播放设备，专用于在电力和电池价格昂贵或很难获得的区域使用。
比如早期我们所做的手动电唱机，以及神奇的 卡通话卡板唱机。
href="/zh-Hans/saber">Saber赛博手动数码播放器，目前在世界各地使用。它性能稳定，可以播放标准的MP3和WMA格式的文件。
我们也有限提供信使和磁带谈话的手摇磁带播放机。
环球录音网的音频播放设备
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The "CardTalk" cardboard record player
The simple but ingenious CardTalk cardboard player was developed to play phonograph records without electricity.
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The "Messenger II" hand crank cassette player
The Messenger II is a sturdy hand-wind cassette player for use by churches and missions where commercial cassette equipment is not available.
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The "TapeTalk 2" hand crank cassette player
The TapeTalk 2 is a mono player that is powered by turning a handle, and is designed for use in locations where there are no batteries or other sources of power
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Saber手摇数字播放器
Saber手摇数字播放器如今在全球广泛使用。它性能稳定，可播放MP3 和 WMA 格式的文件。