How do I know whether the attendance machine is enabled with Bluetooth function?

Hello, after the employee successfully enters the fingerprint, the voice prompt will be replaced with: the fingerprint is successfully entered, and the attendance machine can also support Bluetooth punching; Employees who have activated nails will be notified by D, and employees who have not activated nails will be prompted by SMS. Warm reminder: After Bluetooth punching is turned on, punching nails can be successful within 5 meters of the attendance machine at work or after work, and there will be a reminder of punching success; Bluetooth punch card only supports fixed shift system and scheduling system.