OCUS DK-71FM

Speaker's functional parameter
Output : RMS 6W(3W+3W)THD=10%
Frequency response: 150-18000Hz
Signal& noise ratio : >80dB
Loudspeaker : 1.5 inch(external diameter 40mm)
40 ohm
Input : 5.0V
Output :3.7V*1000MA
Built-in rechargeable Li-on Batt.