1.0brain-trainer.comhttps://brain-trainer.com/es/Rahhttps://brain-trainer.com/es/blog/author/deborah/Headphones - brain-trainer.comrich600338<blockquote class="wp-embedded-content" data-secret="XF1CJzf3Tb"><a href="https://brain-trainer.com/es/answer/headphones/">Headphones</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://brain-trainer.com/es/answer/headphones/embed/#?secret=XF1CJzf3Tb" width="600" height="338" title="«Headphones» — brain-trainer.com" data-secret="XF1CJzf3Tb" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
/* ]]> */
</script>
Headphones You can’t use headphones with any kind of electrical circuitry, volume controls, noise-canceling ability, etc. Use plain headphones or earbuds. If you do an internet search on ear clip headphones or clip on headphones, there are many inexpensive brands that do not interfere with electrodes on the scalp the way standard headphones may.