Laser keychain, laser pointer keychain Material: Brass battery:3 pcs LR41 CE&ROHS Function: red laser pointer, led torch, laser pointer laser keychainMaterial: metalColor: any color as customer requestLogo print availableUses 3pcs AG3 batteriesLaser output: Class III < 5mWWavelength:650nmFunction:red laser pointer, led torch, keychainCertificate: CE&ROHS