The scientists' appeal comes amid increasing popularity of wireless devices such as Apple's Airpods, which use Bluetooth technology and emits EMF radiation.
Around 28 million AirPods have been sold worldwide since they were launched in 2016 to tackle the menace of tangled earphones, the Sun Online reported.
In a petition to the United Nations (UN) and World Health Organization (WHO), the researchers, who hail from 42 different countries, point to Bluetooth technology as cause for concern.
According to the Daily Mail, the concern is that the AirPods sit so far within the ear that they could potentially easily pass radiation in through the ear.
"If you also use a cell phone on a daily basis, it's weird to worry about the hazards of these earphones", Ken Foster, a bioengineering professor at University of Pennsylvania, told Health.com.
It mentions cancer, neurological disorders, and DNA damage as among the possible harms some research has linked to EMF exposure.
However, the petition isn't new - it originated in 2015 - and specifically calls out non-ionizing electromagnetic fields (used in all Bluetooth devices), as well as radiofrequency radiation emitting devices (like cell phones and Wi-Fi) as risky.
Williamson in doubt for third test after NZ wrap up Bangladesh series
Central Stags batsman Will Young is overdue an worldwide debut and will play in Christchurch if Williamson is ruled out. Stead countered: "If he's fit, no player wants to give up their spot in the test team".
The most obvious and well-established risk of radiowaves is that, at high levels, they can generate heat and cause burns.
The petition also notes the recent determination from the International Agency for Research on Cancer that EMF may be "carcinogenic" to humans.
"Bluetooth could open the blood-brain barrier that evolved to keep large molecules out of the brain, since the technology tends to be low-intensity", said Moskowitz.
This means that radiowaves are less risky than higher energy radiation like X-rays or UV, but more extremely low-frequency radiation.
Devices such as Airpods comply with legal limits for electromagnetic frequency (EMF) radio waves - but the 250 experts worry that the guidelines are too lax.
"The various agencies setting safety standards have failed to impose sufficient guidelines to protect the general public, particularly children who are more vulnerable to the effects of EMF".
"By not taking action, theWHO is failing to fulfill its role as the preeminent global public health agency".
Other scientists say there is no risk with Kenneth Foster, a professor of bioengineering at the University of Pennsylvania, saying "these arguments have no credibility", according to a Medium post.