This is a small (20 x 4 mm) speaker, 100 ohm, enclosed, originally intended for use in a cell phone. The high impedance makes it practical to drive this speaker directly from a PIC pin, but do not forget to use an anti-parallel diode.
This is a surplus product. It was obtained from a surplus store, from an inventory or from any other secondary source. You can expect this product to be in good working condition, but it can show signs of being handled, shipped, repackaged etc. The supply of a surplus article can suddenly run out, or the price can change. Get it while it is available.
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M-LSP-09 | very small speaker, 32 Ohm DC (surplus) |
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M-LSP-11 | very flat small speaker, 8 Ohm |