【POWERFUL MOTOR】250W high speed brushless rear geared hub motor saves electricity，more efficiency, quieter, lighter and smoother,speed up to 15-17 mph,20 mph max.Fully enclosed waterproof and dustproof IPX6. 20’’E-Bike is first choice for urban commute and rainy riding..【FULLY HIDDEN BATTERY】—36V/7.8Ah Lithium-Ion rechargeable and removable battery can take you anywhere from 26-40miles! Fully Integrated Battery Design-The battery is mounted inside the frame. Easy quick release battery, convenient to bring home or office to recharge..【PROFESSIONAL CONFIGURATION】—Collapsible frame for quick folding and easy storage. When folded, the size is only 31.5*15.7*29.7 inch. The Shimano 7-speed gear allows you to easily cope when climbing. Electric disc-brakes can cut off the power supply to the motor for fast brake..【3 WORKING MODES】Throttle (ebike)/pedal-assist/normal bike mode can meet your different riding needs and elevate fun.Either it is to explore new trails outdoors, get in some exercise, or rush into work or errands,this electric bicycle will always be your most dependable partner..【HILAND SERVICE】E bike is 85% pre-assembled and simple assembly process can be completed on your own.Guaranteed with 1 YEAR WARRANTY for Batterys, Charger, motor and controller. Solutions will be quickly provided by support team!Electric bikes all have been inspected before package.