1.Vibrating massager help to provide maximum relief to tense neck muscles; 2.To relieve neck discomfort&backache; 3. For travel,care,office and home use; 4.operated by 4pcs "AA" batteries. unit package: polybag size: 38x28x8cm Gross weight: 13.5Kg Meas; 62x58x34cm MOQ; 5,000PCS Delivery: 30 days