Electric Stair Climbing Dolly 440lbs Capacity Stair Climbing Hand Trucks

Electric Stair Climbing Dolly 440lbs Capacity Stair Climbing Hand TrucksEfficient Stair ClimbingSmooth & Secure Stair ClimbingUpgraded MaterialsEasy to OperateReliable DesignNon-Slip Stair Climbing WheelsMotor Dustproof & Waterproof: IP54,Charger Input Voltage: 100-240V,Color: Silver,Handle Height: 47.6" - 61.4" / 1210 - 1560 mm,Max Load Capacity (Climbing): 440 lbs / 200 kg (Stair slope approximately 30°),Product Dimensions: 61.4 x 21.3 x 13.4 inch / 1560 x 540 x 340 mm,Battery Type: Lithium-ion battery,Charging Time: 3.5 hours,Power Supply: AC 120V, 60Hz,Operating Noise: ≤50dB (tested at 1-meter radius),Main Materials: Aluminum Alloy, Steel, Rubber, Plastic,Cargo Plate Dimensions: 17.3" x 9.8" / 440 x 250 mm,Item Model Number: SC202H-180,Product Weight: 74.5 lbs / 33.8 kg,Climbing Wheels: 2.4" Inflatable Rubber Wheels x 2,Endurance: 1600-1800 steps (full charge, 300 lbs load, 30° stairs),Speed Settings: 30/50 steps/min,Max Climbing Step Height: 9.1" / 230 mm