The M1 will no longer be made, the M2 is simply the evolution of the wearable SUBPAC product.  It is slimmer with improved fit and accuracy which makes it a stylish product you can use anywhere, anytime.  It features Bluetooth 4.0, more powerful transducers, longer battery life, lighter weight, and a flexible strapping system.  

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Category: THE NEW SUBPAC M2

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