... /Russian/Spanish/other languages* Sound output: Built-in stereo speakers, can add the amplifier(optional)* Safety setting: ... the on/off timer, can play appointed file in appointed time* USB copy files to CF/SD ... , can keep or delete the old files in CF/SD card automatically* Memorizer function after power ... , multi-touch, network, wireless, 3G and bulit-in PC Trade Terms: 1. Payment terms: 50% deposit ...