Item Type: Insect Repellent_x000D_ Material: ABS_x000D_ Size: Approx. 4.2 x 3 x 1cm / 1.7 x 1.2 x 0.4in_x000D_ Weight: Approx. 16g / 0.6oz_x000D_ DC: 5V / 1-2A_x000D_ Rated Power: 0.008-0.015W_x000D_ Working Current: 2-3.5mA_x000D_ Acoustic Frequency: 10-135KHz_x000D_ Effective Range: 10-80_x000D_ Application: Car, Outdoor Travel, Camping, Fishing, Outdoor Work, Baby Products, Home and Indoor, Safety and Environmental Protection Are Harmless to People and Pets. 110?135Khz (8 band ultrasonic infinite loop scanning) physically repels maids, fleas, mice and mosquitoes, and repels them safely without chemicals. 2Ultrasonic covers a wide area, and long term use can achieve ideal results and long service life. 3Ultrasonic physical drive, only effective against pests, safe and environmentally friendly, babies, pregnant women, the elderly, etc. or pets can be used with confidence. 4USB ultrasonic mosquito repellent works at the same time to light up the color night light. 5Use the USB cable to easily operate and charge; the detachable collection tray is hygienic and easy to clean.1 x UltrasonicPestRepeller 1 x User Manual