not bad. Small opening tape recording technology can ensure clear sound quality and no compression distortion of digital audio; The tape material of small opening tape sound is durable and can withstand long-term use and frequent playback; Small opening tape sound can be recorded and played repeatedly, and can be used many times, saving cost; Small opening tape sound is compact and easy to carry, and you can listen to music anytime and anywhere; Small opening tape sound has a certain retro style, which can satisfy some people's pursuit and memory of classical music.