Plugs directly into USB port - no cable needed 3 modes: Steady, Strobe, Flash Rear and side visibility Fuel gauge shows how much charge is left (Green=75%, Orange=25%-75%,Red= 25%) Brightness: 30 lumens Up to 1 hour run time (steady) Up to 3 hours (strobe) Up to 4 hours (flash). Disclaimers: 1.EP Household has no responsibility for physical injuries,emotional injuries,and mental injuries of the buyers or the users,if the buyers or the users got hurt in use of this product; 2.Any legal cases/claims filed against EP Household have to be settelled down and negotiated via court of arbitration,no exceptions. 3.EP Household has no responsibility for the damage and/or loss of products/items ordered from EP Household if the buyers took the privilege of FREE SHIPPING on his/her order(s).