The TASCAM models SS-R250N and SS-CDR250N are the ideal SD card recorder/players having a variety of features with extensive terminal equipment applications and business applications. An FTP client function is added which enables the exchanges of sound source data with others via server communication. You can also keep the starting time accurate for recording and playback based on time management via SNTP. The remote control with the dedicated app on a iOS/Android device, and the mic inputs are also available on the unit which allows you to use in many ways with flexibility.