SK Telecom Introduces Mosquito-Repelling Sound Service in South Korea

SK Telecom offers a mobile service that emits a sound to repel mosquitoes by mimicking male mosquito sounds, which female mosquitoes avoid during pregnancy. The sound uses various frequencies to target different mosquito types and is effective within 1.5 meters. Despite using 30% of the phone's battery, it is safe for humans. The service has been popular, with 300,000 downloads since July, and SK Telecom plans to expand to repel other insects like cockroaches and bees.

What is the primary reason female mosquitoes avoid the sound provided by SK Telecom's service?

• It emits a high-pitched noise.

• It mimics the sound of male mosquitoes.

• It generates a sound similar to human voices.

• It produces a low-frequency hum.

How does the sound program ensure it is not disturbing to humans while they sleep?

• It only operates during the day.

• It automatically turns off at night.

• It has a controllable timer and volume setting.

• It uses a special soundproof technology.

What is the range within which the sound program is effective in repelling mosquitoes?

• 5 meters

• 3 meters

• 2 meters

• 1.5 meters

Approximately how many people downloaded the mosquito repelling program in the first eight days?

• 100,000

• 300,000

• 50,000

• 10,000

What future plans does SK Telecom have for their sound programs?

• To create programs for repelling birds.

• To develop programs for repelling cockroaches and bees.

• To expand the program to other countries.

• To integrate the program with smart home devices.