The Reader: Detects any RFID chip that passes by and sends athlete information to your computer. Operates off of cellular data, or data can be saved by SD card. Depending on use, additional billing for cellular data may be necessary. Can be used for cross country races or practices. Easily communicates with other systems if necessary for additional splits. Comes with tripod to be used when operating with on bib RFID chips. Software included. Water-resistant and can operate under harsh conditions. One year warranty.