Shipping Notice: We are on vacation from July 14–21, 2026. Orders can still be placed as usual. Shipping resumes on July 22, 2026.
Bluetooth Audio 5.0
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Erostek MK-312BT / ET-312BT TENS Estim Device Power Unit
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Erostek MK-312BT / ET-312BT TENS Estim Device Power Unit Audio Bluetooth 5.0
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Erostek MK-312BT / ET-312BT TENS Estim Device Power Unit Bluetooth 2.0
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Erostek MK-312BT / ET312B “Bundle of 2 Devices”
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E-Stim Systems 2B NEW MK2B Device Power Unit “Black Edition”
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E-Stim Systems 2B NEW MK2B Device Power Unit “Bundle of 2 Devices”
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E-Stim Systems 2B NEW MK2B Device Power Unit “Black Edition” Bluetooth 2.0
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SOLD OUT 
E-Stim Systems 2B NEW MK2B Device Power Unit “White Edition”
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E-Stim Systems 2B E-Box Kit