5.8 cm (2.3") full-range speaker with coated paper cone, rubber surround,  squared metal basket with 4 mounting holes and rubber gasket.  4.8 x 0.5 mm (+) and 2.8 x 0.5 mm (-) contact pins. Very linear and wide  frequency response and low resonant frequency provide a wide range of apllications, including Hi-Fi-applications.
Technical Data:
| Rated power | 5 W | 
|---|
              | Maximum power | 10 W | 
              | Nominal impedance Z | 8 Ohm | 
              | Frequency response | 120–20000 Hz | 
     
                        | Mean sound pressure level | 81 dB (1 W/1 m) | 
              | Resonance frequency fs | 210 Hz | 
              | Cutout diameter | 57 mm | 
              | Net weight | 0,13 kg | 
              | Connections | 4,8 x 0,5 mm (+) 2,8 x 0,5 mm (−)
 | 
              | Temperature range | −25 ... 70 °C |