?This item imitates the sounds of dragonfly wings' vibration to repel mosquitoes. It's special for babies and children to use.<br> <br> Features:<br> Work by continuously transmitting a powerful range of ultrasonic waves that drives away mosquitoes.<br> Can help the baby far away from mosquitoes outdoors or indoors.<br> Easy to carry it with the rope， convenient for use.<br> Repel mosquitoes at the range of 50 square meters， if there is an open space.<br> With this mosquito repeller， children can enjoy themselves without mosquito problem.<br> Non-toxic and safe to use， will not cause bad effects on humans， pets or home appliances.<br> <br> How to use:<br> 1. Press once for the first time， the sound will last for 2 hours with green light flashing every one second.<br> 2. Second press， it will last for 4 hours.<br> 3. Third press， it will last for 8 hours.<br> 4. After fourth press， it will stop working.<br> <br> Specifications:<br> Color: Light blue / Dark Blue (randomly Send)<br> Material: ABS<br> Power Supply: 1 * CR2032 Button Battery (not included)<br> Effective Range: 50 Square Meters<br> Three Selection: 2/4/8 Hours<br> Rope Length: 30cm / 11.8in<br> Item Size: 5 * 5 * 2cm / 1.97 * 1.97 * 0.8in<br> Item Weight: 12g / 0.42oz<br> Package Size: 14.5 * 9.5 * 3cm / 5.7 * 3.35 * 1.2in<br> Package Weight: 27g / 0.95oz<br> <br> Package List:<br> 1 * Portable Mosquito Repeller<br> 1 * Rope<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>