DescriptionAre you alsways feel tired after a long-day working or studying? Do you often have a headache and then want to reduce the pain? This massage comb is designed for daily use, easy to carry, can be used in office, home and anywhere. It works to improve head blood circulation, stimulate and invigorate the scalp, relive stress, relax yourself and good for sleep. Do not hesitate, just buy it!Feature- Color: White.- Size: 115 x 63 x 65 mm / 3.45 x 1.89 x 1.95 inch.- Material: ABS+TPB.- Working Voltage: DC3.0V (200mA).- Battery: 2 x AAA.- Vibrating Frequency: 8000rpm.- Weight: 95g.- G