This is a PEAKPULSE golf rangefinder, a laser rangefinder. It features 6x optical magnification, slope compensation, pin lock, and continuous measurement. It can measure up to 660 yards. It's compact and easy to carry, and the high-transmittance LED screen provides excellent visibility. IPX5 waterproof rating allows for use in rainy weather. [Brand] PEAKPULSE [Category] Golf Rangefinder It has been used for over 30 rounds, so there is some wear and tear, but there are no performance issues. Two batteries are included in the main unit. I will also include an additional four batteries. Thank you.