Blue Tees Golf S4 Ultra 6x Rangefinder Black. S4 Ultra boasts our most advanced technology to date unparalleled flag lock capability up to 350 Yards industry leading electronics and construction an OLED display and an IP54 weather resistant rating. Specifications for Blue Tees Golf S4 Ultra 6x Rangefinder: Manufacturer: Blue Tees Golf Objective Lens Diameter: 21 mm Magnification: 6 x Water Resistance Level: IP54 Weight: 214 g Width: 70 mm Length: 123 mm Color: Black Battery Type: CR2 Finish: Overmold Condition: New Additional Features: OLED Lithium Metal Battery Features of Blue Tees Golf S4 Ultra 6x Rangefinder Oled Display Ultra Magstrip Brightness Control Advanced Flag Lock Slope Switch Pulse Vibration Auto-Depth Filter 1200 Yard Range Active Track Package Contents: Blue Tees Golf S4 Ultra 6x Rangefinder Carabiner Clip Rangefinder Case Charging Cord Blue Tees Golf RF-G-S4U-BK: S4 Ultra 6x Rangefinder Black