# speaker drive size:2*3 inch.
# Output power:5w*2.
# Frequency responseL100Hz-20Khz.
# Signal to noise ratio:>85db.
# FM scan rang:87.5-108.0Mhz.
# USB charging:DC5V.
# Max memory support(USB.SD):32GB.
# Play time:up to 3 hours at 75% Volume
# Charging time:2-3 hours.