Gikfun 4Ohm 40mm Diameter 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino (Pack of 2pcs)
$8.18
characteristic sensitivity of loudspeaker : 83±3dB resonance frequency : 320Hz±20%, Insulation Resistance : 10MΩ nominal impedance : 4Ω±15%, input-power rating : 2W rated frequency range : 0-20KHz, distortion factor : maximum 5%
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