Features: The super large capacity is 3400mAh, with a longer ranges of about 15 hours. LED indicator light, power display at a glance, 4pcs power indicators, more convenient to show the battery State of charge. One button start, simple and easy to use, with independent switches, ready to use and on. Press once to start power supply and then press twice to turn it off. Strong adaptability, mainstream Type-C port charging, multiple protections intelligent charging, with overvoltage, overcurrent, overcharge, over-temperature, over power, short circuit protections, stable, safe, and more effective. Build in soft anti slip pad, effectively protecting the handle from scratches and making it more secure. Specifications: Material: Lithium Battery Color: Black Capacity: 3400mAh Size: Standard Size Package Includes: 1x Handle Battery note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.