RELIFE RL-071B 4 In 1 Optical Fingerprint Calibrator Cell Phone Under Screen Fingerprint Correction Tool

1. Solve the problem of under-screen fingerprints not working or not being able to record, etc. 2. Quick start, simple operation 3. High recognition rate, to solve the problem of screen fingerprint failure after the completion of cell phone replacement 4. Silicone weights, larger size, anti-light leakage, faster calibration 5. Note: only the calibrator, does not contain others