Thank you for viewing. I purchased this about six months ago and have stored it at home after confirming it powered on once. Operation has been confirmed. There are no noticeable scratches or stains, but I have lost the instruction manual. Instruction Manual (Manufacturer's Page) https://laluna.itembox.design/item/neck.pdf ※ The following is quoted from the manufacturer ※ 【Product Specifications】Body Weight: 175g (including remote control) | Body Size: 166 x 134 x 42mm | Power Supply: 5V DC 1A 5W | Battery: 1500mAh | Modes: 6 types (1: Mix Mode 1 [repeats Mode 3→4→5 in 1-minute intervals], 2: Mix Mode 2 [repeats Mode 4→3→6 in 1-minute intervals], 3: Gua Sha Mode, 4: Press Mode, 5: Roll Mode, 6: Tapping Mode) | Temperature Levels: 4 levels (0: Temperature OFF, 1: Approx. 36℃~38℃, 2: Approx. 38℃~40℃, 3: Approx. 40℃~42℃, 2: Approx. 42℃~44℃) | EMS Levels: 16 levels | Timer: Adjustable in 5-minute increments up to 30 minutes | 【Accessories】USB cable x 1 | Storage bag x 1 | Remote control x 1 | *Adapter not included. La Luna can be experienced "while" working or doing housework. The lightweight and fitting body brings you a relaxed feeling anytime, anywhere, even when you are busy. Enjoy your relaxation time. Easy to operate while wearing with the remote control with a screen | Voice guidance available. Voice guidance can also be turned OFF. If this product is left uncharged for a long period of time, or if charging is continued even when the battery is full, it may cause malfunction or shorten the battery life. Also, please charge it once a month even if you are not using it. ※ This product is not a medical device, therapeutic device, massager, or massager intended for treatment purposes. It is a miscellaneous item. Also, it does not guarantee a massage effect. If you have any diseases or have had surgery in the past, be sure to consult with a doctor. If you have any concerns about using it, please consult with a doctor. Features: EMS