Specification:Wireless transmission rang :up to 10meterSpeaker drive size :8 inchOutput power:10W+10W TWEETERFrequency response:100Hz-20KHzSignal to noise ratio :FM scan rang:>=85dB87.5-108.0MHzUSB charging:DCSVBattery capacity:Max memory support(USB/SD) :2400mAh32GBPlay time:up to 1-2 hours at 75% VolumeCharging time:Product Size:3 hours26.2 22 36.5CMPOWER /ON/OFF /VOLUME+/BASSLINE INUSBTFTREBLEMICROPHONEMINCHARGEMODEPREVIOUSPLAY PAUSENEXTWIRELESS SPEAKER