The first intelligent e-scooter all over the word. Aircraft Aluminum Alloy / Integrated Tooling / Double Brake / Taper Folding (Patented).With 28pcs Tesla-Leveled Li-Ion battery cells,longer circle life & security & stability ensured. With 228Wh power, more than 25 miles range provided. What's more, S1 is equipped with Auto-level intelligent BMS (Battery Management System) so as to provide a comprehensive security for the battery pack.350W brushless hub motor from Germany 260 pounds load weight , 15 degree climbing , 14 mph safe limited speedConnected smart phone APP via Bluetooth with S1, then speed, power status will be transferred to smart phone as Virtual Dashboard on your phone. With Powerocks app, S1 is under your control.