Review on Wireless headphones Sony WF-SP900, black by Eimei Suzuki ᠌

1) Sufficiently low sound quality. Much worse than the same Sony WI-1000X. 2) Listen to music in general. When the head is immersed in the water (for example, the breaststroke) or the head is turned into the water (crawl), the volume of the sound changes slightly. Coupled with rather mediocre sound insulation, and there are plenty of extraneous sounds in the pool, it is a moot option for listening to music. Is it something in the pop genre and at high volume. 3) Bluetooth only supports SBC and AAC. There are no aptX and LDAC in headphones for 20 thousand at all. 4) I did not find the ability to rewind the track back and forth. The ideal interval would be 10 seconds.