Enjoy your ride and your music for longer. The Surge Pro has a 36V 2.6aH battery allowing for a max range of 7 miles per charge. The 6.3" luminous wheels standout, especially in the evening when you can really see them shine. First time riders need not worry, the Surge Pro comes with a self-balancing mode so you can learn quicker and get to riding. FEATURES: Integrated Bluetooth speaker 6.2 MPH Max Speed 7 Mile Max Range 6.3" LED Tires 500W Motor Strength 36V 2.6aH 90-Day Limited Warranty Tested and Certified to UL2272 Safety Standard