what is the decibel reduction on these?
From the vendor:
“We disclose prominently on the packaging that the Noise Reduction Rating (NRR) is 12 decibels. However, bear in mind the Noise Reduction Rating system is a scientific average over many different sound frequencies and about 15 different test subjects who use the earplugs in a laboratory setting. In reality, users actually can expect to reduce noise by up the 21 decibels depending on the frequency and if the earplugs are being properly worn.”
Do they work with Apple phone
These are ear plugs, not earphones.
Are these New, never used?