BEST GIFT: Insomnia sleep instrument is a gift choice for family or friends USB charging: The sleep aid is easy to charge, can be connected to a computer mobile power supply, power supply and other charging methods, and has a long battery life Promote sleep: The deep sleep instrument can stimulate the neurotransmitters in the cerebral cortex to regulate emotions through micro-current, thereby promoting sleep and improving sleep quality. Features: Improve sleep This product mainly helps people with insufficient sleep and poor mental quality to fall asleep as soon as possible. It also relieves migraines, relieves anxiety, and relieves stress. Simple and convenient to use, gently hold the sleep aid machine. The micro-current is transmitted to the brain through the Laogong point of the palm, which has a calming and relaxing effect and promotes healthy sleep. Design: The circular button design of the sleep meter, one-button power on, adjust the power supply, and easily fall asleep every day Material: The hand-held sleeper adopts a simple oval design of ABS and silicone, which is in line with human design, simple and comfortable. Please allow some color error due to differences between shooting light and monitor. Thanks for your understanding.