Aluminium Outdoor Speaker 1.Music playing in TF card & USB disk, Line-in, FM Radio, 2.Build-in Rechargable Battery Outdoor Mini Speaker Attribute:1.Demention59*50mm2.Output RMS3w, THD=10%3.Speaker Power4Ω/2W,4.Frequency Response200Hz---18KHz5.Signal-to-Noise>85db6.Distortion<0.5%7.BatteryBuild-in Li-Battery (300MA)8.FM Frequency87.5---108MA Monica's Warm Note: There is no MOQ limitation for our ...