In Stock. Save money and get the right frequencies when you buy Twin Packs! The AKG WMS40/DIV/HT40/407 combines two SEPARATE "true diversity" wireless systems (a handheld and a lavalier) that are perfectly matched for interference free operation, plus you save over 50 bucks when you buy them as a set! This Twin Pack is perfect for churches, corporate events, and any other situation where you need versatility from your wireless mic set up.