... audio jack,Then open the foot switch can be used 4.Use product charging line ,USB charging line cann' ... t be used as Audio linemore details Model No.smile-08 ... black,yellow,Orange.Blue 1.Audio power:2W(watt.),4Ω2.Battery capacity:,600mA,3.7V.Payment terms: ... ,EXPRESS,FEDEX,TNT and so on ,normally is 4-5 work days.COMPANY INTRODUCTION Paikeshi Electronics Co., ...