Nine Benefits of This Product 1. Fingerprint unlocking 2. Low battery reminder 3.USB charging port 4.IP65 waterproof rating 5. Capacitive sensor 6. Zinc alloy material 7.M4 processor 8.0.05 seconds fast recognition 9. Large battery and long battery life Instructions for use: 1. Register administrator's fingerprint Short press the setting button to activate the fingerprint capture function. At this point, the blue light will flash quickly, please press the fingerprint to enter 5 times, each time the fingerprint is collected successfully, the blue light will go out once and keep flashing fast, 5 presses to collect After the success, the blue light is always on, then the fingerprint is entered successfully. If the red light is flashing, it means that the registration of the fingerprint this time has failed. Need to re-press the setting button to enter. 2. Register ordinary users' fingerprints Short press the setting button, the pink light flashes slowly, prompting you to verify the fingerprint administrator; press and release the fingerprint administrator's finger, the pink light will slowly blink twice, indicating that the fingerprint administrator is verified successfully, then the indicator the light will turn blue flashes quickly, prompting the 'fingerprint user to start registration; If you press and release the fingerprint administrator's finger, the red light will slowly blink twice, indicating that the verification has failed and the system is entering standby. When the fingerprint is not stored, any finger can trigger. 3. Delete Fingerprint Long press the setting button, the indicator light will change from blue light to slowly flashing red light, then to slow flashing pink light, prompting the fingerprint administrator to check; press and release the fingerprint administrator's finger, the pink light will slow down Fast blinking twice, indicating successful verification of the fingerprint administrator, then the indicator light turns solid red, prompting the administrator to fingerprints and user files to be deleted successfully; If you press and release the fingerprint administrator's finger, the red light will flash twice slowly, indicating verification failure, file deletion failure, and system standby. During use, the pink light flashes slowly, indicating a low battery alarm, reminding you to charge or replace the battery Reminder: It can be unlocked 50 times when the battery is low. Don't worry that you can't unlock it suddenly when the battery is low.