The Bushnell Hybrid Laser and GPS rangefinder uses the latest laser and GPS technologies to produce an accurate and fast yardage. The lasered distances to the pin are displayed and the GPS automatically provides front and back yardage readings within the LCD. You can even see GPS front, center and back yardages on the outside of the laser to help with correct club selections when golfers have cart path only or blind shots. With Dual Power Technology, you can use the laser even if the GPS is not charged. The CR2 battery powers the laser and the USB rechargeable lithium ion battery powers the GPS. It also uses PinSeeker JOLT Technology, whcih provides short, vibrating bursts when you lock onto the flagstick.