Features: 1. Lightweight and portable: this mini pulse massager is designed to be lightweight and easy to carry. You can use it at any time at home, in the office or on the journey to relieve pressure. 2. Various application methods: it can be used not only to massage shoulders and cervical vertebra, but also to relax muscles in different parts of waist, arms, legs and so on to meet your massage needs of the whole body. 3. Automatic pulse function: with automatic pulse mode, it can massage deep muscles and help relieve stiffness, fatigue and pain of shoulder and neck. 4. Advanced Material: this massager is made of high quality materials, comfortable and durable. In addition, it is easy to clean and ensures optimal hygiene. 5. Ideal gift choice: if you are looking for a healthy and practical gift, then this massager will be the ideal choice. This is a gift suitable for men and women of all ages, especially for people who work long hours or exercise regularly, it can provide deep muscle relaxation and relieve pain. Product Parameters Product Name: pendant cervical vertebra massager Massage principle: magnetic, EMS micro current Product Net Weight: 50g Color: red/square gray/black/square red Input voltage: 5v = 1A Rated Power: 5W Rated frequency: 50Hz Battery capacity: 1200 mA Temperature adjustment: Supported Product Size: 55*52*20mm Packaging includes: cervical vertebra massager * 1, charging wire * 1