wireless earbuds bluetooth 5.0, noise cancelling true wireless earbuds 20h playtime, 3d stereo sound wireless bluetooth headphones volume control(black) beacon pet <b>true wireless earbuds bluetooth 5.0, ipx5 sweatproof headphones for sports.</b><br> <b>what we differ with other wireless earbuds:</b><br> (1) unique cat charging case, 4 led lights show different energy reminding you when to charge.<br> (2) ergonomic wireless earbuds design for ear canal, ensure secure and comfort experience, stay put not fall even in sports.<br> (3) adopting ultra lightweight material, one earbud less than 4g.<br> (4) best noise cancelling experience with the wireless earbuds, no more noise to disturb your world.<br> (5) earbuds come with hd clear microphone providing real hd communication experience.<br> ( 6) quickly charged earbuds in 1h, offering 3.5-4h playtime, about 60 songs and 2 movies. upgrade type-c charge for 2h full charging the case.<br> ( 7)wide compatibility bluetooth 5.0 headphones are engineered to work well with android / ios smartphones, tablet, mp3, mp4, pc, laptop, etc.<br> <b>version of bluetooth:</b>5.0.<br> <b>distance of bluetooth:</b>10m.<br> <b>impedance ohm value:</b>16ω.<br> <b>battery specifications:</b>polymer lithium battery.<br> <b>battery capacity of headsets:</b>40mah.<br> <b>battery capacity of chariging box:</b>500mah.<br> <b>frequency range:</b>50hz-24khz.<br> <b>transmitting power:</b>class2 (-6dbm - 4dbm) 2.5mw.<br> <b>charging and working voltage:</b>5v/3.7v.<br> <b>charging time:</b>1.5 hours.<br> <b>charging current:</b>30 ma.<br> <b>fully charged light voltage:</b>4.05-4.2v.<br> <b>low power shutdown voltage:</b>about 3.0v.<br> <b>listening music:</b>about 4 hours.<br> <b>talk time:</b>about 5 hours.<br> <b>sensitivity:</b>100db.<br> <b>rated output power:</b>3mw.<br> <b>maximum output power:</b>5mw.<br> <b>sensitivity:</b>-42±3db.<br> <b>what you get in our bluetooth earbuds:</b><br> 2 *wireless earbuds.<br> 1 * portable magnetic charging case.<br> 1 *type-c cable.<br> 3 * eartips.