ThermaCELL MR300 Portable Mosquito Repeller - Hi-Vis Yellow. The MR300 Repeller with Holster can be used during virtually any outdoor activity to repel annoying mosquitoes stopping them in mid-air before they come into contact with skin. The MR300 is the newest Thermacell Portable Mosquito Repeller and includes a new-and-improved holster specifically designed for optimal use with the MR300 Portable Repeller.Features:New features of the MR300 Portable Repeller include: Reengineered grill and switch for improved performance quieter ignition improved ergonomics and an accessory mounting system that will come in handy with the included holster with clip. New features of the Holster for MR300 Portable Repellers include: Internal mat storage pocket external fuel cartridge storage pocket elastic enclosures and detachable clip. Holster optimized for MR300 and MR450 Portable Repellers. Also compatible with MR150 Portable Repellers. Ideal mosquito repellent for hunters from the tree stand to the duck blind. Lightweight convenient portable and highly effective. Scent-free and DEET-free. No spray no mess no open flame and no smoky candles. Package contains: 1 Black MR300 Repeller 1 Camouflage Holster and 12 hours of refills - 3 repellent mats and 1 fuel cartridgeSpecifications:Active ingredient: D-cis/trans allethrin Assembly Details: No assembly required Batteries: N/A Dimensions: 7.8" x 2.9" x 1.8" (LxWxH) Hours of Protection Included: 12 Light: No Model Number: MR300L Rubber Armor: No Warranty: 1 Year Satisfaction Guarantee Weight (lb): 0.4 Zone Check: No Zone of Protection Size: 15 Feet Specifications for ThermaCELL MR300 Mosquito Repeller: Manufacturer: ThermaCELL Active Ingredient: d-cis/trans allethrin Package Contents: ThermaCELL Thermacell MR300 Portable Mosquito Repeller ThermaCELL MR300V: MR300 Portable Mosquito Repeller - Hi-Vis Yellow