Bluetooth race starting time synchronization system

A race starting time synchronization system, comprising:

• a hand-held race starting device, wherein the race starting device comprises a Bluetooth Low Energy (BLE) transmitter, having a first BLE chip and a transmitting antenna, and wherein the race starting device further comprises at least one starting signal generating component, one or more starting batteries electrically connected to the BLE transmitter and to the starting signal generating component, a start button, a reset button, a first flash memory, and one or more starting BLE status LEDs;
• one or more race recording devices, wherein each race recording device is configured to receive BLE transmissions of a race starting time cue from the race starting device, and wherein each race recording device is connected, through a wireless cellular or Wi-Fi network, to a race database, and wherein each race recording device runs a racing application software;
• wherein the race starting device is configured, upon the activation of the start button or the reset button, to generate the race starting time cue, and wherein the race starting device is configured to transmit the race starting time cue by the BLE transmitter through the transmitting antenna to each race recording device, and wherein each race recording device is configured to use the racing application software to calculate a race completion time for a race participant, and wherein each race recording device is configured to upload the race completion time to the race database.