Electromagnetic Repellent I would not recommend to anyone, at least not these specific ones. Bell & Howell 4-Pack Ultrasonic Pest Repellers: Fast and effective against mice, rats, ants, roaches and spiders Ultrasonic sound waves combined with electromagnetic waves No harmful chemicals Odor-free Plastic 90-day limited warranty Model# 33153916 Directions: Instructions: Fast and effective, Bell & Howell's Ultrasonic Pest Repellers just plug into an outlet and use sound waves to keep mice, rats, roaches, spiders, and ants away Explore this item Features New Assembled Product Weight Manufacturer Insect & Pest Repellent Type Country of Origin - Components Units Per Consumer Unit Pest Type Manufacturer Part Number Model Brand Country of Origin - Assembly Assembled Product Dimensions (L x W x H) You are viewing Bell & Howell 4-Pack Ultrasonic Pest Repellers N 0.12 Generic Ultrasonic Pest Repellers Imported 1 Insect 50167 50167 Bell and Howell Imported 3.0 x 2.0 x 2.7 Inches Sunforce Solar-Powered Garden Rodent Repeller N 1.5 SunForce N/A Imported 1 Gophers, Rats, Moles and other Rodents 80001 80001 Sunforce Imported 14.5 x 6.5 x 3.8 Inches Ortho Home Defense MAX Insect Killer for Indoor & Perimeter1 Ready-To-Use Trigger 1 gal N 8.33 lb The ORTHO Group Insect & Mosquito USA 1 Ants 0196710PM 0196710PM Ortho USA 4.875 x 8.95 x 12 Inches BiteShield Portable Mosquito Repellent N 0.55 Koolatron N/A USA or Imported N/A Mosquitoes MM30 MM30 Bite Shield USA or Imported 3.1 x 2.5 x 3.0 Inches Raid Concentrated Deep Reach Fogger, 4 ct N 0.9 lb SC Johnson & Sons Ant;Spider USA and Imported 1 Ant;Spider 657396 1351705 Raid US 2.13 x 8.5 x 4.25 Inches Bell & Howell Electromagnetic Ultrasonic Pest Repeller N 0.12 Generic Pest Repeller Imported N/A Rat 50153 50153 Bell and Howell Imported 3.0 x 2.0 x 2.7 Inches Viatek PR60C Ultrasonic Pest Repeller with Electromagnetic Nightlight N 0.4063 Viatek Pest Repellent Imported 1 Flea;Cockroach PR60C PR60C Viatek Imported 5.25 x 3.0 x 3.0 Inches Bird-X Yard Gard Ultrasonic Animal Repeller N 3.0 Generic Animal Repellent Imported 1 Animal YG YG Generic Imported 6.75 x 5.25 x 3.25 Inches Bug Zapper Electronic Flying Insect Killer N 2.0 Koolatron N/A USA or Imported N/A Mosquitoes FT24 FT24 Generic USA or Imported 5.3 x 5.3 x 13.0 Inches Best seller ranking:#102 inPatio & Garden #14 inPatio & Garden Gardening & Lawn Care #2 inPatio & Garden Gardening & Lawn CarePest Control Advertisement Advertiser Content Explore Related Products Skip to end of links Bell + Howell Pest Control Bird Repellents Control Pest Whiteflies Insect Control Killer Pest Control Bell + Howell Bell + Howell Collection Advertisement Advertiser Content Sponsored Products Skip to end of links $4.94 SC Johnson Off! I havent used electronic repellents. This includes devices that electromagnetic repellent emit a uniform frequency as well as those that electromagnetic repellent emit changing frequencies of ultrasound.  Introducing the EZ Ultrasonic Pest Repeller!

• ✔ SEE FAST RESULTS IN 7-10 DAYS - The EZ Pest Repeller strategically combines ultrasonic & electromagnetic technology to force away rodents, cockroaches, spiders, roaches, ants, mice & rats quickly & easily so they simply leave your home & never come back again. Most customers see fast results in just 7-10 days! In extreme cases, it may take up to 21 days to see complete results.
Electromagnetic Repellent Pete Rosales Says: September 8th, 2017 at 9:08 pm These devices are a bunch of BS they don’t work and I’m guessing some guy sits around typing these good comments. They are still finding a way in. DID NOT BOTH THEM AT ALL. by CommunityAnswer8/11/2015 Was this answer helpful?
• ✔ USE 1 FOR EACH ROOM - For best & fastest results, be sure to order 1 device for each room in your household. Each order comes with 4 units to ensure maximum coverage.
• ✔ NO HARMFUL CHEMICALS OR POISONS - 100% kid & pet friendly. Doesn't use any hazardous chemicals, sprays or traps. No insecticides. Unlike a mouse trap, ant bait, rat zapper or insect killer spray, this product doesn't harm or kill the pests. It has zero odor and is totally inaudible to humans.
Electromagnetic Repellent If we consider the test results that electromagnetic repellent manufacturers are sharing with buyers, and match those with any number of online reviews, one can safely conclude that electromagnetic repellent these devices do work. Their government protects it’s citizens. http://sosrats.com/repellents/rodent-sheriff-rat-repellent-spray/ I don’t know how this worked, they were just gone. Advertiser Content Sponsored links What's this?
• ✔ ZERO MAINTENANCE - Naturally drives away pests without creating any mess. No cleaning up dead rodents or insects. Much more cost-effective, easy & safe than spending hundreds or thousands of $$ on expensive pest control services every few months. No battery required.
• ✔ PEST FREE GUARANTEE - If you have any issues with the product you can ship it back within 30 days for a full money back guarantee!
  
  Electromagnetic Repellent x Real Time Web Analytics Hide Wiki Loves Monuments: The world's largest photography competition is now open! A few months after moving in we had a mouse problem, put down those sticky pads and bought my first ultrasonic plug ins and have been using them since 2006. Report by Jon849/21/2012 It looks like you are not signed in. I've had it for a month and have not seen one Nat since than.
• Repels Bugs, Ants, Mice, Cockroaches, Mosquitoes, Spiders, Rats, and More
• Non-toxic& Environment-friendly
• Standard Wall Plug-In
• Indoor Use Only
• Ultrasonic Frequency:20~55KHZ
• Power Source: AC90~220(V)
• Power: 5W
• Effective coverage area: 100 - 150 square meters