SoundTraxx 28mm (1") Round Speaker
 
Suitable for many HO and larger models. 
 
Dimensions: 28 x 4.5mm(D)
Frequency Response: 320 Hz - 18kHz
Power: 1 Watt (Nominal) 2 Watts (Peak)
Impedance: 8 Ohms
 
 
MSRP; $12.95