The ICOtec SD Card Reader is perfect for saving your new sounds to the SD card in your Plus Series Programmable Predator Calls. Simply log onto the Animal Audio app and download your purchased sounds directly to the appropriate category folders on your SD card, or create new categories and save your new sounds there. You can download new sounds in the field! The SD card reader works with iOS and Android devices. The SD card reader will work with the GEN2 GC350, GEN2 GC500 and Hellion SD cards as well. You must load sounds from the ICOtec web site sound library, .mp3 or .wav files. NOTICE: the Animal Audio files will not play on the GEN2 callers or the previous version of the Outlaw, Night Stalker or Sabre. Product Features SD card slot Lightning, Micro B, USB Type-C, and USB-A compatible Transfer files from phone, table, PC to an SD card (SD card not included) Works flawlessly with Animal Audio app