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Stereo audio amplifier boosts sound 50 times. Great for the-hearing impaired (e.g. when watching TV), as a gadget, science project, … With volume control and on/off switch.
  • power supply: 3 1.5V AA battery (not included)
  • dimensions: 2.4" x 2.1" x 1.7"

QTY: 1
Product condition: New