Traxxas XO-1 Fully Assembled, RTR with Stability Management Field Model SYN FEATURES: Traxxas Stability Management (TSM): Superior tuning algorithms run on high-speed electronic components to control wheel spin and steering INCLUDES: RTR XO-1 On Road Car with TQi 2.4GHz Radio, Docking Base, Wireless Module, Painted Body, Steering Servo, Brushless Motor & ESC, Traxxas Stab REQUIRES: Battery Charger: LiPo compatible Batteries: Two 3-cell 5000mAh LiPo batteries with Traxxas High-Current connectors LiPo Charging Bag AA Battery