See all parts that fit your 2009 B4000
iPhone 4/4S Case with Built-in Headphone Amplifier, Splitter and Extended, Rechargeable Battery
Full-Featured Hard-Shell Case • Compatible With iPhone 4/4S • Built-In Battery to Extend Battery Life Up to 44 Hours • Built-In Headphone Splitter and Amplifier • White
Learn more about the hp1original-whiteItem is brand new and arriving to our warehouses on Wednesday, December 7, 2011. It will ship out the same day and arrive to you at least 2 weeks before Christmas.
Increase Your iPhone's Battery Life
The HP-1 has a powerful 1650mAh on-board backup battery which can nearly double the battery life of the iPhone 4/4S, allowing you to unleash the full potential of the Retina display, Bluetooth, and other features often sacrificed to preserve the battery. The unique Smart Battery Protection circuit continuously monitors and optimizes the power performance of your iPhone, and an independent LED indicator keeps you informed of the remaining life of the secondary battery.
Headphone Amplifier & Splitter
The i.Fuzen HP-1 allows you to share your music with a friend by splitting the single headphone jack into two. The proprietary J-FET OP-AMP amplifier is powerful enough to drive two pairs of standard headphones or one pair of professional monitoring headphones while maintaining vacuum tube quality sound, making the HP-1 the ideal choice for audiophiles and music lovers alike. The dual mini-jacks are conveniently located on the bottom of the case for easy access.
Unrestricted iTunes Sync
With full USB pass through capability, this case will allow you to sync flawlessly with iTunes without the need to remove the iPhone. The mini USB input also increases your options if you are in need of an emergency charge, but do not have access to a dock connector cable.
Innovative Design
The i.Fuzen HP-1 takes advantage of the features and style of the iPhone 4/4S. The relatively sleek case accentuates the iPhone's distinctive lines while minimizing the increase in overall size. The HP-1 is available in white and black, allowing you to easily match the case to your iPhone.
Cell Phone Case Features:
Device Specifications:
Battery Specifications:
Headphone Amplifier Specifications:
Compatible Cell Phones:
Key Features And Comparison Chart
![]() |
||||
| Unlimited Headphone Amp Usage While Charging |
|
|
![]() |
![]() |
| Longer Headphone Amp Usage |
|
|
![]() |
![]() |
| Auto Shut-Off To Extend Battery Reserve |
|
|
![]() |
![]() |
| 4-Step LED battery life meter |
![]() |
![]() |
![]() |
![]() |
| Touch panel volume control |
![]() |
![]() |
![]() |
![]() |
| USB Input For Increased Charging Options |
![]() |
![]() |
![]() |
![]() |
| Color |
Manufacturer:
Model Number:
HP-1-WHITE
Weight:
0.90lbs
Internal SKU:
hp1original-white
Internal Product ID:
42487
Cancel
Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.