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CH905ST
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
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From $2.75 /unit
PROPSET10
Includes durable propellers, varied sizes, STEM-friendly, colorful designs
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From $12 /unit
Piezoelectric Earphones/Crystal Earphones
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
Set of 10 Plastic Propellers
Includes durable propellers, varied sizes, STEM-friendly, colorful designs