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Telephone amplifier with booster button cla40
telephone amplifier with booster button cla40
Telephone amplifier with booster button cla40
Telephone amplifier with booster button tone control suitable for 99 of all phones features receiving volume control up to 30db and up to 40 db gain with boost volume button receiving tone control bass 10db max treble 10db max light and portable handset matching switch 12 positions ensures compatibility with 99 of telephones sleek modern design simple connection requires 1 x 9v pp3 battery not included specif

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