Price reduced from 790 yen to 740 yen on 2026/03/29! Bone conduction speaker, blue. I bought this new and unopened a month ago because I was having trouble sleeping due to a certain issue. However, the issue was resolved, and I can now sleep soundly, so it's no longer needed. I've used it about 3 times. It's labeled as bone conduction, but there is a slight sound leakage even when placed under a pillow. Upon closer inspection, it seems to be usable as both bone conduction and normal speaker, although there isn't a switch to change modes. I was satisfied with its performance for my own use while sleeping. I was surprised by how long the battery lasted despite it being thin and light. I used it to play sounds of bonfires and rain. It will be delivered after removing it from the box and wrapping it in bubble wrap. Immediate purchase is welcome, so thank you!