Hand and Brain Frequency Synchronization: During use, this product properly stimulates the hands, allowing the hands and brain to synchronize at the same frequency. This synchronization calms anxiety, promoting a relaxed state of mind conducive to falling asleep. Experience optimal sleep conditions and overcome any anxiety or restlessness that may hinder a good night's sleep. Neurotransmitter Stimulation: This sleep aid device utilizes microcurrents to stimulate neurotransmitters in the cerebral cortex. By regulating emotions and promoting a sense of calm, it helps induce sleep naturally. With this advanced technology, users can experience improved sleep quality and wake up feeling refreshed and rejuvenated. USB Convenient Charging: With its USB charging capability, this sleep aid device offers flexibility and convenience. It can be easily connected to a computer USB port, power bank, power supply, or any other USB-compatible device. Enjoy long-lasting performance and endurance, ensuring that the device has sufficient power whenever you need it. Round Button Design: The round button design allows for easy operation with just one key to turn on and adjust power settings. This user-friendly feature simplifies the process of falling asleep, making it effortless and convenient for users to achieve a peaceful sleep every day. Simple Oval Design: This sleep aid device features a sleek and ergonomic oval design that fits perfectly in the hand. With its new matte texture, it offers a comfortable grip and a modern aesthetic that appeals to users seeking a sleek and simple design.