This unit consist of an EO Tech 552 with circle-dot reticle (uses AA batteries) and a EO Tech Laser Aiming Device mounted on the side of the scope. It is on the EOTech website as an EOLAD. It has a low and high power switch for the Visible Laser, on side of the unit is an activation button and a remote activation pad. Best seen on the EO Tech website. Lke new. $400 plus $20 shipping.