Amazing gadget features 2 tools: Tool to repel mosquitoes (child friendly sounds available) Tool to train pets, ideal for DOGS and CATS. Generates sounds ranging 12000 to 20000 Hz, depending on your "age" you may hear a little noise, however its not harmful to humans. Most humans cannot hear this sound. We provide a guide in the mosquito repeller about this feature. Isn't it annoying when mosquitoes and other insects ruin your outings? Not any more! This simple application works with a sound frequency that is harmless and even soundless to humans; but unbearable to mosquitoes! Say shoo mosquito for the last time with this great and simple applications! You just click on it and it starts playing the harmless sound in order to repel the insects. WARNING: If you are allergic or cannot be around insects because of other health issues, please do not use this as the only way to repel them since we cannot guarantee that all insects will disappear with the use of this application. Now you can go camping, or to that romantic picnic worry free! We are constantly working on new releases, so please feel free to share any ideas or comments with us! Enjoy! Application was tested in a farm (full of mosquitoes) and it works great! A dog whistle is a type of whistle used in the training of dogs and cats. Features: Frequency slider (12000 to 20000 Hz) Toggle button, to avoid "pressing" constantly you can press the toggle button just once. Make sure you release it if you want to stop the sound. Bark Detector with threshold slider, application will activate sound when bark sounds get close to the established level. Soundmeter Pattern:Inv Sine, Square, Triangl and Since 3 memories with useful preset settings. Application sound runs even after "locking" the phone. Amazing graphic interface by Danielo Lipele. These kind of whistles are also used to determine the hearing range of people or for physics demonstrations. Note: If you have a ipod first generation you will need speakers, if you own iPod Touch second generation or Iphone you do not need speakers however if you have them they can certainly help to improve success rate. If you need assistance please contact us email@example.com We will be adding additional apps soon! Enjoy!