Brand: BIC America. MPN: W-RECEIVER. Need to add another ed subwoofer or ed speaker to your BIC WTRS-SYS Kit? Add 1 BIC America W-Receiver ( audio receiver) for each additional subwoofer or pair of ed speakers to play on the same channel as 1 that s already set to a BIC W-Transmitter. Enhance the bass of your home theater system by adding a second subwoofer and the W-Receiver. Add additional sets of outdoor speakers to your patio. Or play what s running in your living room basement or great room in other areas of your home!