Worried about losing your iPhone? If you pair it with Zomm’s Wireless Leash, the Bluetooth device will sound an alarm whenever it senses that the iPhone is more than 10 metres away. The Leash also works as a remote speakerphone with your iPhone, and has a one-button personal security feature that sounds an alarm and calls an emergency phone number. Measuring about 4cm in diameter and weighing a mere 13 grams, the Wireless Leash is easy to carry and can be attached to a keychain or bag loop. We can think of at least one Apple engineer who could have used one.