* Rated voltage: 3.7V * Battery type: lithium polymer battery * Battery capacity: 90mAh * Full charging time: 1 hour * Fully charged use time: 10 hours Gear indicator light * Interface Type-C*Features:*1. Double pulse technology regulates breathing*2. 3 adjustment levels: light pulse, moderate pulse, professional pulse*3. Light 12g, no burden to wear*4. Magnetic charging compartment, automatic adsorption when approaching, convenient storage*5. Equipped with professional-grade patches, which are highly sticky, not easy to fall off, and comfortable to wear.*6. One-click start and stop*Instructions:*1. Before use, shave the stubble on the chin and throat to ensure that the pasting area is clean and fresh.*2. Place the groove of the gel patch toward the throat, look forward, and place your hands on the chin.*3. After pasting, press firmly with the palm of your hand for 30 seconds to ensure full contact between the patch and the skin to prevent it from falling off.*4. After turning on the product, adsorb it on the electrode sheet.