Kindly Reminder: This bluetooth module support Android /IOS mobile device. | Used to communicating between the VESC and VESC Tool (mobile) over BLE. Note that the UART port on the VESC must be enabled with a baud rate of 115200 for this to work. The UART port on VESC can work only under 115200 baud | Operating voltage: 2.0V ~ 12V Onboard Chip: NRF51822 | Actual use distance: The distance to communicate with VESC is about 15 meters | Kindly Reminder: This bluetooth module support Android /IOS mobile device. | Top Service: If there are any question or need help , just feel free contact us , we will always here help you out within 24 hours.