Galaxy S8 Plus Armband, GreatShield GLO [LED Flash Light] Stretchable Neoprene Arm Case for Sports Running for Samsung Galaxy S8 Plus / S7 Edge / Note 5 & Other 5.5" Phones (Black/ White) Safety indicators and reflective strips creates caution and increases safety High visibility with visibility distance of 1640 feet / 500m LED indicators with a lifespan or more than 20,000 hours 3 different warning modes to suit different environments or needs Adjustable strap to ensure it fits snugly; fits arms from 9.5 inches to 16.0 inches