Terminix AllClear Mosquito Mister System, 4,000 Pro Edition, Remote Control For Activation At A Distance, Use For Large Yard, Playgrounds, Pool Areas & Parks, Immediate Protection, One 4 Minute Spray Kills & Repels Mosquitoes, Biting Flies & No-See-Ums For An Area Up To 4000 SQFT For Up To 6 Hours, Easy Placement, Rechargeable Battery, Charger Included, 1 Month Usage With Each Charge, No Assembly Required, Choice Of 2 Concentrate Options, Pyrethrum Or Permethrin, Easy Grip Handle & Large Wheels 8" For Maximum Mobility, 2 Button Switch Power/Activation System For Added Security, No Propane Required.