THE NEW POWERHOUSE - With an internal and external lithium ion battery, the ES4 has a top speed of nearly 19 mph and a range of up to 28 miles. The bar for high-performance e-scooters has been raised.FOLDABLE DESIGN - Featuring a one-touch folding system, the ES4 can be quickly collapsed for convenient storage at home, in the office, or in the trunk. When folded, the front tire remains unlocked so you can pull the ES4 by the handle, as you would a wheeled suitcase.DUAL BRAKE SYSTEM - The ES4 is equipped with an anti-lock electric brake system and an ergonomically designed mechanical brake to improve rider safety. The ES4 has an impressive 13 foot braking distance when traveling at 12.4 mph.SHOCK ABSORPTION - Built-in front and rear wheel shock absorbers provide maximum rider comfort even when traveling at high speeds. Asphalt, concrete, and cobblestones are no problem for this premium scooter.TECHNOLOGICALLY SUPERIOR - With a LED display, Bluetooth capabilities, cruise control, mobile app connectivity for additional security and firmware updates, and customizable ambient light colors, the ES4 combines performance with luxury.