Features: brand new and high quality The mouse-shaped ergonomic design can be held in the for palm of your hand at will. Non-medicine, no harm, no dependence, low-frequency pulse physical action hand for palm transfer, warming hands and massage at the same for time, the sleep aid effect is more obvious. Stimulate neurotransmitters in the cerebral cortex through micro currents, regulate emotions and promote sleep. Relieve fatigue and sleep peacefully. Built-in high-performance control chip, safe output, 1600 mAh battery, to ensure massage and hand warming supply. 3 The temperature of the hand warmer can be adjusted. Place it at will, with a large area of heating film, the hand warming effect is faster and more uniform, and the massage position is more accurate. Specifications: Material:ABC+PC Size: Approx.4x10.8cm/1.57x4.25inches Color:White Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Hand Warming Massager