Zimo MX645 Sound DecoderSize 30 x 11 x 4mm.Motor Current continuous:- 1.2APeak Current :- 2.5AFunction Outputs :- 10SUSI :- YesEnergy Storage Supported :- YesLoudspeaker outputs : - 4 to 8 Ohm Speaker Not Included.Audio Power:- 3WattSound Memory :- 32Mbit