Use Transmitr for wireless on/off, battery status, high beams and mode selection;The Transmitr remote displays battery status indicating when you need to charge;See with our focused optics and over 270 degrees of visibility;800 lumens via a high-power CREE LED;800 lm-1.5 hrs, 450 lm-3 hrs, 200 lm-6 hrs, night flash-20 hrs, day flash 20 hrs;Fully charges in 6 hours via a sealed Micro USB port;Includes 20 degree +/- adjustable Sync bracket that fits bars from 22.2-35.0 mm;Blendr compatible, secure bar mount available;