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Mosquito coil Mosquito coil. A mosquito coil is a mosquito-repelling incense, usually made into a spiral, and typically made using dried paste of pyrethrum powder. The coil is usually held at the center of the spiral, suspending it in the air, or wedged by two pieces of fireproof netting to allow continuous smoldering.
A mosquito coil. An insect repellent (also commonly called "bug spray") is a substance applied to the skin, clothing, or other surfaces to discourage insects (and arthropods in general) from landing or climbing on that surface.
Listening devices of the East German security services A microphone disguised as a power outlet plate. A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone.
The Mosquito or Mosquito alarm is a machine used to deter loitering by emitting sound at high frequency. In some versions, it is intentionally tuned to be heard primarily by younger people. Nicknamed "Mosquito" for the buzzing sound it plays, the device is marketed as a safety and security tool for preventing youths from congregating in ...
However, devices built between 2010 and 2020 generally use micro-USB connectors, while newer devices tend to use USB-C. Apple devices often use proprietary connectors. External batteries are most commonly stand-alone devices, which can be cabled to the phone's primary charging connector.
A typical flyswatter. A flyswatter (or fly-swat, fly swatter [1]) usually consists of a small rectangular or round sheet of a lightweight, flexible, vented material (usually thin metallic, rubber, or plastic mesh) around 10 cm (4 in) across, attached to a handle about 30 to 60 cm (1 to 2 ft) long made of a lightweight material such as wire, wood, plastic, or metal.
Wide, flat coil shapes are usually used, to increase coupling. [77] Ferrite "flux confinement" cores can confine the magnetic fields, improving coupling and reducing interference to nearby electronics, [77] [79] but they are heavy and bulky so small wireless devices often use air-core coils.
The goal is to hold the call active but use the least amount of transmitting power, mainly to conserve batteries and be efficient. The tower system will sense when a cell phone is not coming in clearly and will order the cell phone to boost transmit power.