・Denki Bari Brush & Denki Bari Cassa I used it three times, but due to my personality, I quickly lost interest and decided to sell it to declutter. I have disinfected it with alcohol after each use. It's rechargeable, and a single charge lasts for about four uses. It has a timer, so it automatically turns off when the time is up. You can feel a tingling electrical sensation, but it's pleasant and addictive. Please feel free to contact me if you have any questions. Thank you.