Our tiniest speaker comes with a properly proportioned speaker enclosure and provides remarkable volume for tiny models!

Dimensions: 13 x 9 x 9.4mm(D)
Frequency Response: 100Hz - 10kHz
Power: 40mW (Nominal) 75mW (Peak)
Impedance: 32 Ohms

Note: When using this speaker with a decoder that has an 1-2 Watt, 8 Ohm  amplifier; it must be wired in parallel with another 32 Ohm speaker to create a 16 Ohm load for the amplifier.