Kensington Proximo Fob Phone and Key Finder: * Proximo fob includes everything you need to track your Apple iPhone and keys * Proximity alarm with customizable range and audio alert tells you when you"ve left your keys behind * 1-touch find alert on fob helps you find your iPhone * Find alert helps you with on-the fly recovery of your keys * Last seen provides you with a pin-drop on map to help you recover your keys * Proximo App dashboard tracks up to 5 valuable items via fob and/or tags (tags sold separately) * Up to 6-month battery life on fob for low maintenance * Personalize your fob with customizable alarm tones, images and names * Robust and ultra-slim 8mm fob design * Monitor the battery life of your fob from your iPhone * Bluetooth 4.0/Bluetooth Smart * Alarm audio output: fob 95dBa * Replaceable battery: model# CR2032 lithium coin battery, up to 6 months * iOS Compatibility: Apple iPhone 4S: iOS 5/iOS 6 or later; iPhone 5: iOS 6 or later