Real action heroes don’t ponce about with mobile phones, they communicate via walkie talkie. It’s easy (not to mention dirt cheap) with these ultra-slim, rechargeable babies. With an effective range of 5km, they’re ideal for skiers, mountaineers, beach bums and Richard Burton wannabes. You can even pretend you’re on a covert mission next time you’re in Tesco’s with your mum. If you’re mad.