Senh Senhai earplugs have no security code.

Website query security code, Sennheiser product packaging has security code. There are two kinds of anti-counterfeiting codes now, but there is only one website to query anti-counterfeiting codes. Go to the help website and click "Security Query". Call to check the security code: dial the instruction number and enter the 16 security code; SMS to check the authenticity of the product: enter the 16 security code and send it to the instruction number to check the authenticity of the product. Check the packaging. In addition to the verification code, you can also check whether the packaging is formal, including the material and details of the packaging. The packaging of regular products is very fine and not very rough. Except for the packaging box, plastic packaging is generally opened at one time. In addition, it depends on the quality of the handbag and whether there is a Chinese product logo and invoice.