The Dnsys X version is an outdoor device with a range of up to 25km and energy savings of up to 50%. 1.2 horsepower output: Combines comfort and power, supporting safety 3 Assist Modes: Eco / Sport / Boost AI Learning Function: Optimized for every movement, adapting to any terrain Comfortable to wear all day: Flexible, comfortable, and secure fit Ride longer: Basic travel distance of 20km + battery replacement completed in 3 seconds A4 size and portable: Compact design that fits anywhere Thank you for viewing.