Features: Built-in Bluetooth Speaker Bright LED Lights Built-in Rechargeable Battery Lightweight Protective Housing Safety Shield Battery Enclosure UL2272 Certified UL Certified Power Adapter MSDS & UN 38.3 Tested Max Distance: 3.6mi (5.8km) Max Speed: 7.4mph (11.9km/h) Max Weight: 160lbs (72.6kg) Max Incline Climb: 10° Motor Power: 400W Tire Size: 6.5 Inches Charge Time: Up to 6 hours Battery Type: Built-In rechargeable Li-ion Battery Capacity: 32V, 2.0 Ah with overcharge and discharge protection Go and explore on The Hover-1 Helix Hoverboard while listening to music of your choice through the built-in Bluetooth speaker. You will be noticed with the cool customisable LED headlights using the Hover-1 Mobile App, where you can also toggle through 3 difficulty modes, track speed, distance travelled and also map your journey through GPS. Travel at speeds of up to 7 mph for 3.6 miles on 6.5" wheels, for hours of fun with friends and family, no matter what the weather as your Helix will come with IPX4 water resistance and Full UL Certification.