1.A. raw materials &hardware: Import-oriented, it can upgrade over ROHS, necessary for export. B. The new USB power supply function can provide external power supply for mobile phones, fans and lights. Independent USB charging protection system is set up for security, which is separated from control circuit and has higher security. 2. Protective measures：overvoltage, overload, overheat and other protective functions. 3. The parameters can be adjusted by programmer, which is suitable for different configurations of electric wheelchairs. 4. This product has foreign trade certificates EMC and FCC. 5. It can add Bluetooth to remote control electric wheelchair. 6.Choose different sizes to control according to the type of car
