The Rockustics TeleStone is a premium uncompressed 2-chanel audio wireless system. The TeleStone wireless transmitter/receiver system is composed of two units, one TeleStone transmitter and one TeleStone receiver/amplifier unit housed in a realistic looking rock. Additional receivers may be ordered to accompany a single transmitter. The sealed enclosure is designed to withstand rain, frost, snow and ice. The receiver rock comes with two strands of direct-burial cable for connection to the speakers and a grounded plug for connection to an AC power source. The direct-burial rated cables are 2.5 feet long. Any additional speaker cable is to be provided by the customer.