Peavey® 4- User Assisted Listening System - 72.1 MHzPeavey Assisted Listening System 72. 1 MHzPeavey Assisted Listening Sys. 72. 1 MHz Peavey Assisted Listening system includes transmitter, four receivers and four standard ear buds Additional receivers available Three frequency options Single or dual transmitter rack mount kits are available Weight Unpacked: 3. 75 lb(1. 7 kg) Weight Packed: 3. 75 lb(1. 7 kg) Width Packed: 11"(27. 94 cm) Height Packed: 16"(40. 64 cm) Depth Packed: 3. 5"(8. 89 cm)