Use for: Instant relaxation, deeper meditation, improved sleep, and frequency imprinting on objects. How to use: - Plug the device into a wall socket, laptop, or power bank using the provided USB-C power cable. - Connect headphones to the device or connect the device to a speaker using an AUX cable. - Enter the desired frequency using the touchpad on the device. - Press "OK". Specifications: - Working voltage: DC 5V (DC 4–15V) - Working current: 9–14mA - Power interface: Type-C (supports Type-C to Type-C power supply) - Default frequency: 7.83Hz - Adjustment range: 0.01Hz to 30,000Hz, pure sine wave - Signal voltage amplitude: 3V - Equipped with 3.5mm o output - Housed in an acrylic shell - Size: 155 x 105 x 26mm (with shell) - Weight: 300g (with shell) Package includes: - 1 x Frequency Generator (with acrylic shell) - 1 x USB cable