Specifications: Product number:YN-AP01 Battery: 3.7V/2600mAh Dimensions: 131mm*75mm*105mm Packing Size:165mm*155mm*110mm Adapter: ~100V-240V 50Hz/60Hz Screen:4.5'LCD Weight: 446g Buzzer alert: The buzzer will alert when the file is less than 2mm closed to the apex