Featuresr good combination of bright taillight brake light wireless intelligent lighting intelligent start stop sos burglar alarm keeping you and your bike safer highest decibel up to 120 decibels any movement of the bike will have warning beeps loud enough to frighten and deter thievesr built in 800mah lithium battery it takes 2 3 hours to fully charged by the included usb charging cable normal working time up to 15 days standby up to 60 daysr compact size 35 18 makes it hi