Dial-type massager with EMS function. A ready-to-use set. It's cordless, so it includes rechargeable batteries and a USB-C cable. Easy to use! Just stick it on, then: Select the area with 【選択】 Set the time with 【タイマーロック】 Adjust the intensity with the 【利用サイトのつまみ】 dial. Use it. If it's too strong, you'll get muscle soreness, so start with a low setting. Also, please purchase only if you understand that this is a used item. How about this for those who are hesitant to buy something expensive right away? ※ Refer to the following for how to apply it, etc. https://www.plaisir-ltd.co.jp/wp-content/uploads/2024/07/27df6cc2e92668aae68586c690cac341.pdf - Model Name: EMS SHAPE BEAT - Included: Power adapter, connection cable, rechargeable batteries - Function: Equipped with EMS function - Operation: Dial-type adjustment button - Country of Manufacture: Made in Japan Thank you for viewing.