Features : 
▪ Built-in Lithium Rechargeable Battery for longer lasting usage 
▪ Easy strap-on installation with silicone band 
▪ 4 Light Modes (Steady on / Low Flashing /Flash / Strobe)
Specifications : 
▪️Material : Plastic 
▪️Brightness : 150 Lumens
▪️Size : Approx 7.5cm x 3cm x 2cm
▪️Color : Red / Blue / White