2.3 cm (0.9") miniature loudspeaker with Mylar membrane and round metal basket. Compact, therefore suitable for signal output in devices where little space is available. Connected via the rear-mounted solder points. - Rated power/music power: 0.3 W / 0.5 W - Impedance: 8 Ohm - Transmission range (-10 dB): 420 - 20,000 Hz - Mean sound pressure level: 89 dB (1 W/1 m) - Resonance frequency: 750 Hz - Voice coil diameter: 10.4 mm - Winding height: 1.5 mm - Baffle opening: 21 mm Ø - Net weight: 0.004 kg https://elecena.pl/product/18519729/2820-visaton-miniature-speaker-2-3-cm-8-ohm 2021-05-20 https://elecena.pl/product/18519729/2820-visaton-miniature-speaker-2-3-cm-8-ohm 2022-12-02