This is a foot massager produced by Entuit, model number BC-838. The device features a power of 65 watts and operates on a wide voltage range of 100-240 volts, making it suitable for use in most countries around the world. Settings: You can change the massage direction or speed (high, medium, low) using the dedicated buttons. Session Duration: It is recommended to use it for 15 to 20 minutes per session.