4d Smart Electric Neck And Back Pulse Massager Tens Wireless Heat Cervical Relax

4D Smart Electric Neck and Back Pulse Massager TENS Wireless Heat Cervical Vertebra Relax Pain Relief Kneading Massage Machine Features: 1. TENS low-frequency pulse massage technology through the skin to reduce specific low-frequency pulse waves to stimulate sensory nerve fibers to achieve analgesic therapy 2. Using TEMS to electrically stimulate nerve cell vitality, built-in sensor (2-block temperature control) 3.4 kinds of massage modes can only be combined, and the 15-stop force can be adjusted to meet the needs of different people. 4.3 Head 4D floating massage head: deep and evenly massage the neck. 5. Portable USB charging port; multi-mode charging. 6. Built-in environmental protection polymer lithium battery, fast charging and long battery life. 7. By default, it will automatically power off after 15 minutes, which is more safe and secure. Specification: Product material: ABS Rated power: 4-6W Rated voltage: 5V Hot moxibustion temperature: 38 ～ 42 ℃ Charging time: 2