4-Head Design :The 4-head design of this cervical massager ensures a broader coverage area, providing more effective neck care and relaxation. Strength Adjustment :This massager features an adjustable strength setting, allowing you to customize the intensity of the massage according to your preference and need. USB Charging :Equipped with USB charging functionality, this massager can be conveniently powered up using any USB device such as a laptop or power bank. Intelligent Voice Heating :The massager comes with an intelligent voice heating feature, automatically adjusting the temperature based on the user's needs for optimal comfort. Neck Care :Specifically designed for neck care, this massager helps to alleviate tension and discomfort in the cervical region, promoting overall wellness. White Color :The massager's sleek white color adds a touch of elegance and sophistication to any room or setting. : Name: Cervical Massage Device Color: White Massage head: 4 Power supply mode: charging type Rated voltage: 3.7V Rated power: 3W Timing: 15 minutes Product size: 14*14.5*8CM Packaging size: 21.5*6.5*10cm Feature: 1.304 stainless steel electrode plate Delicate and non allergic touch sensation 2. One click switch, hassle free and effortless Easy to operate, convenient for all family members to use with confidence 3. Multiple mode combinations Experience more massage fun 4. Upgrade 4 heads and synchronize massage