【Product Material】: ABS + Stainless Steel [Usage Time]: 1st gear approx. 90 minutes, 2nd gear approx. 150 minutes; [Motor Speed]: 1st gear approx: 380 rpm, 2nd gear approx: 280 rpm 【Interface】: TYPE-C Interface 【Input Voltage】: DC 5V 【Output Voltage】: DC 7.4V [Battery Capacity]: 4000mAh (2000mAh*2) [Rated Power]: MAX37W 【Charging Time】: Approx. 2-3 hours [Cord Length]: Approx. 1m [Working Temperature]: -10℃~60℃ 【Storage Temperature】: -10℃~60℃ [Package Weight]: Approx. 1.4kg with packaging accessories [Product Length]: Bare length 130cm [Product Size]: 130* ... [Packaging]: Color box size 380*188.5*75mm Instructions for use: 1. Please insert the USB charging cable into the machine's USB charging port. The indicator light will flash during charging and will be solid when charging is complete. 2. Press and hold the power button for 3 seconds and the machine will enter standby mode. Press the power button again and the machine will start working. The default speed is speed 1. Press again for speed 2 and a third time for standby mode. 3. The remote control function can only work when the machine is in standby mode. Press the remote control button once and the machine will start working. The default speed is speed 1. Press again for speed 2 and a third time for standby mode. 3. This machine uses a lithium-ion battery, which can be charged at any time (but does not support charging during use). There is no need to wait until the battery is completely discharged before charging it. Keeping the battery continuously charged is beneficial for extending its lifespan. 【Notes】: 1. When the battery is low, please charge it in time. Charge it once every three months when it is turned off. 2. Children should not use this product alone to avoid danger. 3. Do not throw into fire 4. Avoid sunlight