Snowflake Ultrasonic Mosquito Repellent Mouse Repellent, Specification: EU Plug 1. Control gear: 5 gears 2. LED light: blueredgreenwhitecycle 3. Input voltage: 90-250V 4. Output power: 4-6W 5. Output frequency: 3-200Khz 6. Effective range: about 20-160 square meters 7. Fire rating: V0 8. Working principle: using ultrasonic waves to continuously change the frequency to stimulate and destroy the brain waves of mosquitoes mice cockroaches, etc., to make small animals feel uneasy, so as to escape from the original residence 9. Material: ABS 10. Weight: about 57.5 grams 11. Size: about 10x7x6.3 cm Features: 1. Four kinds of sound waves are launched in 360 degrees, ultrasonic waveelectromagnetic wavesimulation waveneutral wave 2. Safe, energy saving and low power consumption 3. Automatic frequency conversion to avoid adaptability 4. Low noise operation, suitable for mother and baby, no harm 5. One-key FM, with LED color prompt light 6. Anti-flame retardant material, beautiful and unique