Microwave is a type of electromagnetic radiation with a wavelength shorter than that of radio waves. It is used in microwave ovens to cook food, and in many industrial processes such as softening plastic rods before extrusion. Microwave frequencies also form part of the electromagnetic spectrum used in point-to-point telecommunications.
Microwave radiation does not cause cancer and is perfectly safe to use in your home. However, it can damage the inside of your appliances, so always keep your appliance clean and use it with care.
In electronics, microwaves are often used to process signals, particularly those from radio and television receivers. They are also used in point-to-point telecommunications, where the high data transmission rates of microwaves make them suitable for digital transmissions, and they are more easily focused into narrow beams than lower frequency radio waves, allowing smaller antenna sizes (since antenna size is inversely proportional to frequency).
Microwaves can travel only along line-of-sight paths, unlike other radio waves which may bounce off the ionosphere and other atmospheric layers, or penetrate buildings. Above a frequency of about 100 GHz, the atmosphere becomes opaque to microwaves due to its water content, and at this point, transmission range is limited to a few kilometers.
Large dish antennas such as those found at the Atacama Large Millimeter Array are used in radio astronomy to observe microwave radiation naturally emitted by astronomical objects such as planets, stars, galaxies and nebulas. Microwaves are also emitted by artificial sources such as radar transmitters.
TOSHIBA ML-EM45P(BS) Countertop Microwave Oven with Smart Sensor and 13.6" Removable Position Memory Turntable, Sound On/Off Function, 1200W, 1.6 Cu.ft, Black Stainless Steel
$172.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Galanz GLCMKA07BER-07 Retro Microwave Oven, LED Lighting, Pull Handle Design, Child Lock, Bebop Blue, 0.7 cu ft
$85.00 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
TOSHIBA ML-EM45PIT(SS) Countertop Microwave Oven with Inverter Technology, Kitchen Essentials, Smart Sensor, Auto Defrost, 1.6 Cu.ft, 13.6" Removable Turntable, 33lb.&1250W, Stainless Steel
$179.91 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
COMFEE' EM720CPL-PMB Countertop Microwave Oven with Sound On/Off, ECO Mode and Easy One-Touch Buttons, 0.7cu.ft, 700W, Black
$68.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Nostalgia Retro Microwave Oven - 0.7 Cu Ft, 700-Watt Countertop Size with Glass Turntable, Child Safety Lock, 8 Auto-Cook Programs, Digital Clock - Pink
$89.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
GE Countertop Microwave Oven,1, 200-watt Capacity, 2.0 Cubic Ft., 8 Auto Setting Cooking Settings, Child-Lock Technology, Kitchen Essentials for the Countertop, Dorm Room or Apartment, Stainless Steel
$259.99 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
COMMERCIAL CHEF 0.7 Cubic Foot Microwave with 10 Power Levels, Small Microwave with Push Button, 700W Countertop up to 99 Minute Timer and Digital Display, Stainless Steel
$70.76 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Chefman Countertop Microwave Oven 0.7 Cu. Ft., 700 Watts with 10 Power Levels, 6 Cooking Presets with One-Touch Express Cook, Eco Mode, Child Safety Lock, & Mute Button - Black
$68.96 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
FRIGIDAIRE EMW788RETRO 0.7 cu. ft. Retro Microwave, Black-Gold
$74.98 (as of January 14, 2026 19:13 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)