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Synergy Digital Amplifier Battery, Compatible with Shure SHA900 Amplifier, (Li-ion, 3.7V, 1800mAh) Ultra High Capacity, Replacement for Shure 95A21764 Battery - Walmart.com
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Amazon.com: Shure SHA900 Portable Listening Amplifier, Enhanced Audio Control with DAC Conversion for use In-Line between Digital Audio Sources and Headphones or Earphones, includes 4-Band Parametric EQ : Electronics
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