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CH905ST
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
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From $2.75 /unit
Petri Dishes With Lid, Clear Polystyrene (100X15 Mm)
Clear dishes for growing mold and bacteria with lids.
Physics Electric Circuit Learning Starter Kit Bag
Beginner's guide to electric circuits with hands-on activities.
Piezoelectric Earphones/Crystal Earphones
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.