HOMEMobile Signal RepeatersSparkSolo Signal Booster for Spark 3G, 4G and LTE Cel-Fi 49-21260 Solo Signal Booster for Spark 3G, 4G and LTE SKU #49-21260 Oh oh! That product is no longer available... Check out these alternatives Cel-Fi RPR-CF-00891 GO (G41) Signal Booster for Spark Details VIEW ALL Spark