‌Versatile and feature-rich digital wireless system for those who sing, speak or play instruments that allows for seamless product pairing and management via the EW-D Smart Assist App. Receive state-of-the-art live sound. Features Digital wireless eliminates noise, interference and static bursts UHF transmission greatly enhances range, reliability and scalability Mobile App streamlines setup and operation and eliminates complicated menu Automated setup creates reliable connections with minimal time and effort Up to 2,240 selectable frequencies 56 MHz Bandwidth will allow for up to 90 channels What's in the box? 1x L 70 USB charger 2x BA 70 rechargeable battery packs