USB ChargingA Micro USB cable (included) could be charged from any regular charging port, like couputer, power bank, car charger, no need replacing battery. | 1500Yds Measuring Distance Rangefinder measure 1500yards under condition which there are no obstacles between points. If targets beyond 1500 yards, no data will be read out. | Slope Tech Slope measurement technology measures angle of incline or decline then automatically calculates the slope adjusted distance. | Flag-Lock with Vibration Golf laser range finder have vibration in MODE 2. The rangefinder will vibration warned you when it have locked the target object. |