KEF KW1-RX Wireless Subwoofer Receiver

Connect a second sub wirelessly KEF's KW1 wireless adapter kit (sold separately) is a handy way to connect one compatible subwoofer wirelessly to your audio system. But what if you want to add a second powered sub? That's where this add-on receiver comes in. It plugs directly into your compatible KEF sub's expansion port for power and signal transfer. Wireless range: up to 100 feet, line of sight.