2W COB Sports Armband with Red Light includes the following features : 

• 2W COB bulbs with red light in 80 lumens
• Comes with a one-button switch, provides 3 lighting modes (white > red > white / red flash), and the red light warns to protect dark eyesight
• Made of quality silicone material that protects them from water and sweat
• Powered by a built-in 360 mAh rechargeable polymer lithium battery
• Attached buckle design that gives you the freedom to adjust the tightness as you wish
• USB charging cable included
• Ideal for various night-time activities that need more visibility
• This bracelet fits snugly on your wrist, hand, arm, or foot, or you can fasten them to your bike, helmets, or backpack

Material :

• Silicone body

Size closed :

• Length of 38 cm x Width of 3 cm x Thickness of 1.5 cm