mini portable speaker for mobilephone 1, built in rechargeble battery 2, CE ,FCC,ROHS,RE Mini speaker for Mobilephone Specification:Power output: 2.2W SNR≥89dBSpeakers: D36mmDimension: D(52MM)*H(36mm)Frequency range : 100Hz-20KHzImpedence: 4ΩDistortion≤0.5%Battery input voltage: 3.7VBattery capacity : 200mAhCharger input : DC5VAudio plug: 3.5mmPacking:Color and blister QTY/CTN : 120PCSN.W: 12KGG. ...