Gathered in this group are the audio devices that are neither headphones nor speakers: Cardo and FreedConn intercoms for motorcyclists, Bluetooth amplifiers, sound cards and mixers, and MP3 players and portable radios. With intercoms the figures worth comparing are the range and the number of channels - on the Cardo Spirit HD they are 600 metres and two channels, on the FRC4X003 1,200 metres and four channels. Remember too that a Duo set for two helmets is a different product from a single unit.
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What is the difference between active noise cancelling and passive isolation?
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Can I use one pair with both my phone and my computer?
Gathered in this group are the audio devices that are neither headphones nor speakers: Cardo and FreedConn intercoms for motorcyclists, Bluetooth amplifiers, sound cards and mixers, and MP3 players and portable radios. With intercoms the figures worth comparing are the range and the number of channels - on the Cardo Spirit HD they are 600 metres and two channels, on the FRC4X003 1,200 metres and four channels. Remember too that a Duo set for two helmets is a different product from a single unit.