Features: 1. Function: USB Birds Repeller keep birds away from your car. No more birds droppings. Also great for mosquito repellant. 2. Intelligent frequency conversion emits a specific frequency which interferes with birds39; nervous system. 3. No effect on other animals and human. Totally safe for pregnant women and infant. 4. Provides full coverage with up to 70 m² effective range. No more endless cleaning on your car. 5. No noise, portable design, lightweight, perfect for car, outdoor, camping, hiking. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Specification: Type: Portable Mosquito Birds Repeller Size: 50*13.5mm Material: ABS resin Voltage and current: DC 5V / 1-2A Rated power: 0.007W Working current: 1.8MA Battery capacity: 100mAh Sound frequency: 15-95khz Effective range: 10-70m² Output frequency: 13KHz95KHz Charging method: USB charging supports fast charging Product features: 7-band sound wave infinite loop scanning Applicable scenarios: car, outdoor, travel, camping, fishing, outdoor work, etc. Package List: 1 x Portable Mosquito Birds Repeller