: This massager combines vibration, heating (hot-compress) and micro-pulse/EMS therapy to relieve tension in the neck, shoulders and cervical vertebra area. For example, one description highlights “vibration massage, heating compress, cervical vertebra therapy” and an ergonomic U-shaped design for portable use.
The expected benefits include reduced muscle stiffness, improved blood circulation, eased shoulder/neck fatigue from long hours or travel, and general relaxation of the cervical spine area. Note: While it may help with discomfort, it’s not a substitute for medical treatment for serious spinal conditions.

To use it: you place the device around your neck (and optionally the shoulder area) so that the massage pads or electrodes make contact with the skin. Then select a mode/level for vibration or pulse, and activate the heating function if available. Some models show a “42 °C constant temperature hot compress” among the features.

Yes — it’s designed to be portable, lightweight and USB-rechargeable (in many listings) which makes it suitable for home, office or travel use.

Usage tip: Start with a low setting/intensity, use for a recommended session length (often ~10-15 minutes) and ensure skin contact is comfortable; stop if any discomfort occurs.

Yes. Because it applies heat, vibration, pulses and is used around the neck/cervical area, the following safety points are worth noting:

• Avoid using if you have implanted electrical medical devices (e.g., pacemakers), severe cervical spine disorders or skin lesions in the contact area.
  
• Do not use on broken skin or immediately after surgery in that area.
  
• Some users report caution around pulse/EMS neck devices:
  
  “I know of three stories that … people with no history who had an aneurism… I would not treat chronic pain with a mechanical device that moves your spine around.”
  
  
• Always follow manufacturer instructions for time, intensity, charging and skin contact.
  
• If pregnant, have serious cervical issues, or are unsure, consult a medical professional.
  
• Ensure the device doesn’t overheat; some models include auto shut-off.