The light is very nice. It connects quickly and I love the sound.

I asked for an exchange because the light didn't come on, but they handled it kindly. Thank you for your kind response.

I listened without expecting much, but I was surprised to hear the low frequencies so well! It was also amazing because it was a boost, not an emphasis by crushing or killing other ranges! However, please note that when you listen to a sound source that is not well mixed or nested, it will be a bit muddy, and when you listen to a sound source with special conditions such as Dolby Attmos, the balance of the song will be broken. I got another good wireless earphone at a good price ^^