Although many excellent Pocket PCs are available from a variety of manufacturers, Hewlett-Packard has the lion's share of the market. Not only do they sell more Pocket PCs than anyone else, they offer a greater variety of models, and have a larger selection of accessories than any other Windows Mobile manufacturer. We describe below the most important of these and why you might need them. Most of these are not urgent purchases. If you already know what you want, go ahead and get your accessories. But if you are a new owner of an iPAQ, use it for a while and get a feel for its capabilities. Then take a look at the available accessories and see how you might want to expand your iPAQ's potential.
The accessories mentioned in this article are available from HP's online store (http://www.shopping.hp.com) and other online sources, or from authorized HP dealers.
Replacements for standard accessories
Every iPAQ Pocket PC ships with standard accessories, which include at least one stylus, an AC power adapter, and a synchronization/charging cradle or cable. In addition, most iPAQs ship with a user-replaceable rechargeable battery and a carrying case. Replacements for these accessories are available from Hewlett-Packard. (Note: HP will replace malfunctioning standard accessories free of charge while your device is under warranty.)
Bluetooth Stereo Headphones
The HP Bluetooth stereo headphones connect to your Bluetooth-equipped iPAQ wirelessly and let you listen to MP3s, video, or any audio files within 30 feet of your device. The "behind the head" design gives your headphones a secure fit when you're on the move. Volume controls, power on/off, play/pause, and track fwd/back controls are conveniently placed on the earpiece. Carrying bag and charger are included and the AC adapter can charge both your iPAQ and the headphones. Each headphone charge gives you up to 8 hours of listening.
Price: $99.99
Works with: Bluetooth-equipped iPAQs (not with the h6300 series).
You need this if you want a better audio experience with your iPAQ and want to avoid a cabled connection.

Bluetooth Stereo Headphones
iPAQ Navigation System
This turns your iPAQ into a GPS navigation guide, providing real-time information on your current location and turn-by-turn directions to any address nationwide. The system features the Navtech map data with an extensive point of interest database including over one million entries, including restaurants, hotels, gas stations and more. The moving map display shows your current location, and the system will automatically recalculate your route if you miss a turn.
Price: $329.99
Works with: Bluetooth-equipped iPAQs
You need this if you travel or live in a large city and want to make finding your way around easier.

iPAQ Navigation System includes a Bluetooth GPS receiver and navigation software with Navtech map data.
Keyboards
A wide variety of keyboards with options are available for most iPAQs.
Bluetooth Foldable Keyboard
Folds out into a near-full sized, five row QWERTY keyboard that communicates with your iPAQ wirelessly via Bluetooth. This accessory makes it easier to take notes, compose e-mail, write reports, or engage in any activity that requires intensive text/data entry. The wireless connection lets you place the keyboard in any configuration that is comfortable for you.When not in use the keyboard folds up into a small, portable package.
Bluetooth Foldable Keyboard.