The ChatterVox portable voice amplification system is design to elevate vocal output of people with temporary or permanent voice impairments. Worn as a fanny pack around waist, with a woven nylon waistband that is adjustable to 44. The ChatterVox can amplify the users voice 12 to 18 dB. This kit includes the ChatterVox unit, charger, 6 NiHM rechargeable batteries, and the selected microphone unit. This unit includes the DynaMic Collar Mic which comfortably wraps around the neck until positioned like any traditional microphone headset. Covered under a 1-year mfg. warranty.