![]() These circles can be resized to quite a large area though, so I haven't found it to be problematic. You can't 'draw' a polygonal Location, so no squares or other funny shapes. If the device leaves or enters one of these areas, you will receive a push notification. ![]() Separately, in the app, you can define one or more *circular* areas on Google maps (right in the app) as "Locations". If the device leaves wifi range, it "wakes up" (uses more battery), but will not send alerts unless it leaves or enters a "Location" as described below. As noted above, as long as the device is within range of its wifi network (not sure if there can be more than one - I haven't tested - comments welcome), the device stays in battery-saving "sleep mode". The "Sleep Zone" is defined purely by wifi range. I let it sit for several hours and it never updated, however, once I removed the device from wifi range and brought it back into range, the firmware updated within minutes. You can dismiss the pop-up, and the device will still work, but every time you open the app you'll be reminded that 'it's working on updating firmware'. At this point, it's important that your wifi router is actually connected to the INTERNET because the device will attempt a firmware update (This part is interesting, so I'll expand: You'll know the device wants to update firmware by way of a pop-up in the app. Once connected via bluetooth, the app will prompt you to choose a WIFI network for the device to connect to and enter the password. I imagine you could theoretically set up the device with a friend's smartphone, add a phone number or email address for SMS/email notifications to a different device, and then delete the app. Once you download the app and create an account, it prompts you to connect via BLUETOOTH to the device. ![]() You cannot set up this device without a SMART PHONE (Android or iOS). When you open the box the are instructions that direct you to go to the app store to download the "Whistle 3" app. This device contains (at least) a battery, a GPS receiver, a bluetooth antenna, a wifi antenna, and a 3G antenna. Here's what I've learned about how it actually works: I didn't understand why (and didn't believe them), so I decided to risk it and bought it anyway. I contacted support to ask them if internet was required and three times they told me "yes". However, she doesn't have internet service where she lives, and I really didn't want to have to buy service just for this device to be able to stay in "sleep mode". This product seemed to fit the bill and was reasonably priced. Therefore, it had to be waterproof for showers, and because I don't want to drive there every day to charge it, must have long battery life. My mother has alzheimer's and I've been looking for a device I can attach to her that she can't remove, but will alert me when she leaves her assisted living facility 30 miles away from my home. Para obtener más información sobre cómo y para qué fines Amazon utiliza la información personal (como el historial de pedidos de Amazon Store), visita nuestro Aviso de privacidad. Para ello, visita Preferencias de cookies, tal y como se describe en el Aviso de cookies. Puedes cambiar de opinión en cualquier momento. Haz clic en “Personalizar cookies” para rechazar estas cookies, tomar decisiones más detalladas u obtener más información. Estos terceros utilizan cookies para mostrar y medir anuncios personalizados, generar información sobre la audiencia, y desarrollar y mejorar los productos. Esto incluye el uso de cookies propias y de terceros que almacenan o acceden a información estándar del dispositivo, como un identificador único. Si estás de acuerdo, también utilizaremos las cookies para complementar tu experiencia de compra en las tiendas de Amazon, tal y como se describe en nuestro Aviso de cookies. También utilizamos estas cookies para entender cómo utilizan los clientes nuestros servicios (por ejemplo, mediante la medición de las visitas al sitio web) con el fin de poder realizar mejoras. Utilizamos cookies y herramientas similares que son necesarias para permitirte comprar, mejorar tus experiencias de compra y proporcionar nuestros servicios, según se detalla en nuestro Aviso de cookies.
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