Here’s the English version of your message: Ezzypep is the easiest-to-use and clean OPEP device I’ve ever used, among others like Aerobika, Acapella, and DR Burton OPEP. It requires no adjustments and is ready to use straight out of the box. Additionally, its oscillation performance surpasses many other OPEP devices on the market. I genuinely recommend it to everyone. Let me know if any changes are needed!