Kindly Reminder: This bluetooth module can only support mobile device.Used to communicating between the and (mobile) over BLE. Note that the UART port on the must be enabled with a baud rate of 115200 for this to work. The UART port on can work only under 115200 baudOperating voltage: 20V ~ 12V Onboard Chip: NRF51822Actual use distance: The distance to communicate with is about 15 metersFrequency range: 24GHz24 GHz multiprotololl RF receiverARM Cortex-M0 32 bit processor256kB flash & 16kB RAMPCB size:27mm x 13mm20mm seven-pin four- length:90mmAntenna length:145mmnet weight:35gType: Suitable for V6Colour: BlackMaterial: composite materialPackage Contents:1 x Skateboard Bluetooth ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.