iASUS XSound 2.1 helmet speakers sound

Add-on speakers improve helmet sound

A quick and cheap way to improve the quality of your helmet’s Bluetooth sound system is to buy some aftermarket plug-in speakers like the XSound 2.1 from iASUS. The problem with many helmet Bluetooth intercom units – even top-quality models – is that they seem to skimp on the sound quality of their speakers. They …

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