The DP Electronic Rechargeable Mosquito Tennis DP834 is a portable, battery-powered racket designed to kill mosquitoes and other small insects on contact. It features an electric grid that zaps pests when they come into contact with it. The device is rechargeable (usually via USB), lightweight, and often includes safety mechanisms to prevent accidental shocks. Some models may also have LED lights for better visibility in the dark. It's an eco-friendly alternative to chemical repellents.