This could probably be the most expensive accessory that you would buy for your iPhone 3G S (iPhone 3G) – the Mophie Juice Pack Air. It’s a cool-looking protective hard-shell case that doubles the battery life of your iPhone 3GS. It’s a must-have accessory if your main phone is the iPhone 3GS and you use it heavily every day.

The Mophie Juice Pack Air gives you the following:

• up to 270 hours standby time
• 4.5 hours talk time on 3G
• 4.5 hours internet use on 3G
• 5.4 hours internet use on Wi-Fi
• up to 20 hours audio playback
• up to 6 hours video playback

You can grab one of this pack at iStudio in Bonifacio Global City. Price – Php 3,850.

Here are some more photos: