Specification:
Power output: 40W=20Wx2(RMS) 
Tweeter: 1"
Woofer: 4" 
Frequency response: 65Hz - 20 KHz
Dimension: W162xD135xH238mm 

Power input: AC 100V-240V~50/60Hz 0.3A
Weight: 3.5kg (net)  

Download:

R23BT manual

R23BT leaflet