Transcutaneous Electrical Stimulation Unit: The unit provides transcutaneous electrical stimulation therapy and is a muscle stimulator, nerve stimulator, and electric massager that controls four (4) ear pads of the transcutaneous electrical stimulation unit (electrodes) for targeted pain relief. 48 Advanced Therapy Modes: Our innovative cervical spine massager offers 48 carefully selected treatment modes to maximize effectiveness. Choose the mode that best suits your needs and adjust the intensity for comfort. Ideal for relieving body pain, exercising muscles, and relaxing the body. It also serves as a rehabilitation and training tool to improve strength and endurance. We recommend alternating between different treatment modes for optimal results! Convenient USB Charging: The cervical spine massager features USB charging, ensuring full portabilityyou can carry it in your bag or pocket and enjoy a massage anytime, anywhere. Its powerful battery provides up to 45 minutes of daily use for a week on a single charge, ensuring a continuous and satisfying experience. USB charging delivers stable, long-lasting power, keeping your device ready for relief and comfort. Compact Design for Optimal Storage: This device is the perfect gift to show care for family and friends. Its small size makes it a practical and essential personal care solution for modern, busy lifestyles. Easy to carry in a bag or backpack, it optimizes space and ensures comfort on the go, keeping wellness within reach. Note: The machine cannot be turned on during charging and will not display contentonly the battery compartment movement will be visible. Additionally, it is best to use the included charging cable, as the Type-C port may vary by country, and other cables may not charge it properly.