FreeSpeak II 24 digital wireless BP: 2.4 GHz Digital wireless beltpack including four talk and listen buttons with integral crosspoint level rotary controls and answerback and menu key. LED level and call signalization and OLED menu. Includes XLR-4M headset connector, USB cable, belt clip, BAT60 rechargeable Lithium Ion battery. FCC approved for use in the USA and Canada and available for worldwide sales except EU countries