1,Corded earplugs with EN352-2 CE Certification 2, Rebound time: 5- 25 seconds 3. SNR: 32db 4, Color: any two colors 1, Description: double color earplug2, Material: eco-friendly foamed PU3, MOQ: 10000 pairs4, Color: Up to client5, Cord:all the earplugs can come with cord or without cord 6, Daily output: 100,000 pairs per day7, Certification: CE Certification8, Operating environment: all kind of ...