Hollyland Mars T1000 Full Duplex Wireless Intercom SystemThe maximum communication distance between the base station and beltpacks is 300 meters, which is greater than the combined length of two soccer fields. This will ensure smooth communication between team members over long distances and allow them to collaborate more effectively in the field. Ideal for broadcasting, training, and meetings, the Hollyland Full Duplex Intercom System with Four Beltpack Transceivers allows two way communication at a range