LED Running Lights for Runners,Armband, 2 Pack - Reflective Gear Perfect Night Safety Lighting (Red Light) -Comfort Fit on Arms, Ankles, Dual Light Mode for Versatility! (Batteries Included) PACK OF 2 electronic LED armbands, 2 Velcro bands for fastening onto arm and 2 CR2032 batteries for each band. IMPROVE VISIBILITY by using it in either flashing or steady lighting mode and enhance safety at night. Best for jogging, cycling, hiking etc. LONG BATTERY LIFE of up to 20hours depending on lighting mode, with the added benefit of easily replaceable batteries. COMFORT FITTING with the aid of fully adjustable velcro bands which are also lightweight and breathable. MULTIPURPOSE application in night safety by cyclists and pedestrians, as well as creating an electric atmosphere at parties.