Model: sb-791A Spec: -Japanese SONY IC -Digital charge, aptitude control. -Inside ESP Elec-shake proof circuit -Lowest power cost, computer programmed function. -Play VCD/CD/MP3 disc -7-kinds voice function, hifi-voice quality -Full function on earphone cable. P/S: We have many other similar products, if you want to learn more, please kindly check our website: