MODEL:HI.M1.Features:fashion,***all,portable,built-inrechargeablebattery,mini-USBport2.Configuration:Host1pcs,USBspecialcable1pcs,productspecification1pcs,puremetalcrust.Powersupply:DC5V~6V,built-inrechargeablebatteryPowerc***umption:Max2.5WFrequency:100Hz~20kHzcanuseUSBforcharging)