Wireless Bluetooth portable LED light and digital display speaker With free mic
Speaker drive size:4 inch x 2
Signal to noise ratio:>85db.
FM scan rang:87.5-108.0Mhz.
Max memory support(USB.SD):32GB.
Play time:up to 2 hours at 75% Volume
Charging time:2-3 hours.
Support BT,FM,USB,TF card,MIC