The round-shape head with box-shape frame cross section gives Carbonex a unique and solid feeling. For players who seek a solid feel from the strings at impact. At impact, Elastic Ti resists deformation, stretching then recovering its shape...

Specification: Material: Aluminum Alloy Strap's color: Deep Blue Illuminate Range: about 350 m/500ft (High light) Light Color: White light Switch modes: T6/2*XPE/All/Strobe Power Resource: 2*18650 Rechargeable battery?included?, one can also work....