Feature: 1. 7.83Hz Ultra Low Frequency: The ultra low frequency pulse generator uses excellent control chips, with a specific 7.83Hz ultra low frequency, and high accuracy and stability. 2. Adjustable Frequency Range: The adjustable range is from 0.01-100000Hz, which allows you to customize the frequency as needed, thereby improving efficiency and personalization. 3. Promote Relaxation and Health: The ultra low frequency pulse generator emits a sine wave, high stable frequency, which helps to create a relaxing environment and promotes overall health. 4. Easy to Carry: The 7.83Hz ultra low frequency pulse generator has a compact size of 12x12 cm, comes with a USB power cord, it's easy to carry and use at home or while traveling. 5. ABS Material: The shell of this pulse generator is made of premium ABS material, which has high strength, sturdy, not easy to break, and has good durability, a long service life. Specification: Item Type: 7.83Hz Ultra Low Frequency Pulse Generator Material: ABS Color: White Input Voltage: DC 5V 0.5A Output Frequency: 7.83Hz Product Size: Approx. 12x12cm / 4.7x4.7in. Package List: 1 x 7.83Hz Ultra Low Frequency Pulse Generator1 x USB Cable1 x Instruction Manual