Cell phone signal booster ($400)

The first and only battery case get Apple approval license. With 2.1A output which can charge iPad 2 as fast as iPad 2 original charger. Try to find another power pack that looks good, is portable, and extends the power of your iPad 2 all at the same time! Designed to specifically fit with the iPad 2, the iBox securely holds your favorite device in its place, protects it with a structured case, powers it for added portability, and 100% fits with your Smart Cover! Always use it as part of your iPad! No need to take it off for charging or syncing, so your investment would always be more protected, powered, and usable.

• Extends cellular coverage for single or multiple users in homes or offices--provides up to 3000 square feet of coverage
• Dual-band device works with 800/1900 MHz frequencies from all major carriers (not compatible with Nextel)
• Omni-directional signal antenna receives signals from multiple cell towers
• Antenna can be installed outdoors above the roofline or indoors in the attic or near a window
• Extends phone battery life--uses less power when signal is stronger