Low-Frequency Pulse Massage Uses gentle microcurrent pulses to stimulate neck muscles, relieving tension and stiffness from long hours of sitting.Ultra-Long Battery Life Built-in 300mAh battery delivers up to 8 days of use with just one full charge (30 mins/day).Two Power Options Available Choose between rechargeable (blue light) or battery-powered (red light) versions to fit your lifestyle.Portable & Discreet Design Lightweight U-shaped design is perfect for use at the office, home, or while traveling, without drawing attention.Simple & Intuitive Controls One-touch operation with adjustable intensity levels, making it easy to customize your massage experience. | Cluzine | | Neck Massager with Low-Frequency Pulse, Rechargeable, for Office & Travel Use | Best Buy