22 Channels Each with 121 Privacy Codes License Free and compatible with all FRS two-way radios Battery Life - Approximately 18 hours with included 800mAH battery Know the Weather In Advance: Keep updated with real-time weather conditions by turning on one of 11 weather channels or initiating weather alerts. NOAA radio service may not be available in all areas. Up To 20-Mile Voice Range, Depending On Terrain And Conditions Personalization Stickers