Features: 1. Easy to carry: Rechargeable, long battery life, office / home / travel, you can enjoy the relaxation of the neck anytime, anywhere 2. Two-way kneading and vibration massage can be comparable to the massage brought by the hands of a real person. 3. High-frequency mute noise reduction design, let you enjoy the rest time quietly. 4. M-shaped arc neck support design, comfortably support the head and neck, massage before going to bed to reduce stress. Description: Design of M-type arc neck guard,Comfortable support for head and neck , no compression. Specifications: Power supply mode: rechargeable Function: timing Control method: mechanical Applicable parts: neck Gear position: continuously variable Massage technique: Tuina Classification of physiotherapy methods: magnetic therapy Appearance shape: U type Package Included: 1 * U-shaped pillow Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.