Thermacell Repeller E55 Rechargeable 20' Zone Charcoal. The Thermacell E55 20 Zone Mosquito Repellent featuring rechargeable batteries and a 20 foot effective zone is a small and easy way to keep mosquitoes away from your outdoor activities. This rechargeable and bug repeller is perfect for bug control both around your home and yard. It uses an all-natural repellent that doesn't attract insects the same way sunscreen does so there's no sunscreen to block the mosquito's bite. Featuring a unique patented thermicle that does not burn or produce a scent it doesn't attract people or pets and doesn't attract mosquitoes. With the built-in rechargeable battery you can worry about using much battery. You can even recharge the repellent in the Thermacell Easy Charge Rechargeable for longer periods of time. This model features an all-metal rechargeable lithium battery. Repelleting mosquitoes is a big deal because mosquitoes can carry West Nile viruses which can easily spread disease. Specifications for Thermacell Repeller E55 Rechargeable 20' Zone Charcoal: Manufacturer: ThermaCELL Width: 4.55 in Package Contents: Thermacell Repeller E55 Rechargeable 20' Zone Charcoal