Features: 1. Body, Comfortable To Wear, Relieves Neck Discomfort And Cares For Your Cervical Spine 2. The Use Of Low-Frequency Pulse Technology To Conduct Deep Into The Underlying Nerves Of The Muscles For Soothing And Relaxation. 3.3-Level Constant Temperature Hot Compress Promotes Circulation. Constant Temperature Hot Compress Can Promote Blood Circulation And Relieve Cervical Stiffness. 4. Four Function Keys, Simple And Easy To Use 5. Hanging Neck Massager, A And Comfortable Experience Description: Massage Techniques: Tapping, Kneading Type: Pendant Massager Power Supply Mode: Rechargeable Control : Mechanical Battery Capacity: 500mAh Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Material: ABS colour: A-As Shown Package Contents: 1 x Massage Device 1 x Data Cable 1 x English instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.