S2.4HBX DUAL Wireless Mic System (S2.4RX2/S2.4HDX/S2.4BTX) 2.4GHzThe S2. 4 HBX is a dual channel 2. 4GHz ISM Digital Microphone Wireless system with up to 16 selectable channels to choose from. It includes one Handheld Microphone, one Beltpack Transmitter with lapel mic and one Dual Receiver with LCD display. Product Features Beltpack requires to be a 3. 5mm thread mini jack connection (Lapel included), NOT the standard LP2, SJ33, SJ66 as those will not work without being adapted. Trantec dual receiver, beltpack