An incredibly lightweight and comfortable LED band, the LightBender wraps around your arm with a chafe-free stretch band to provide 360-degree visibility. Better yet? It's completely sweatproof, water-resistant, and powered with easily replaceable watch batteries. Features: - Comfortable armband and super-lightweight technology ensure no chafing or discomfort - Blinking or steady stream light settings - Weather-resistant so you can run longer in any conditions - LED: Two LEDs - 8+ max Lumens - Battery: 2x 3V Lithium 2032 - Replaceable Coin Style Battery - Burn Time: STEADY ON - 21+ hrs, STROBE: 42+ hrs Usage Instructions: - Press and hold power button for 2-3 seconds to turn on - Press again to switch between steady and strobe modes - Press and hold power button for 2-3 seconds to turn off