Advanced bluetooth microelectronics Manual and electronic tracking adjustments Electronic cornering force adjustment Programmable speed control buttons 16 speeds forward - 1 speed reverse Auto shut down when out of range Battery: Sealed rechargeable 12V - 33AH Weight without battery: 14 kg (31 lb) Remote Operating Range: approx 50 yards Motors: Twin 180W high-torque - whisper quiet motors Max Load: 30 kg (66 lb) Maximum Speed: 8 kph Climbing capability: 20 degrees minimum Size folded: 810mm x 630 mm x 240 mm (32" x 25" x 9.5") Construction: Lightweight tubular steel Wheels: All terrain soft EVA rubber - extra wide - quick release