Awei Y200 Portable Wireless  Speaker (Six Month Warranty)Specifications Model : Y200 Brand : AWEI Bluetooth Versions:V4.2+EDR Play mode: Bluetooth ,TF Card,AUXSpeaker DIameter: 40mm,Dual speaker Power Output : 4.5w X2 Operating Voltage:3.7V SNR:> 80dBA Distortion :<1%Frequency REsponse: 100hz-18KHzBattery @ power: 2500mAhMusic Playing time :4-5 HOurs Charging time :2 to 3 Hours Bluetooth Transmission Distance :10M