Shop.com is an online store which sell many items in internet. This online shop have an unique style to sell it items. They tell the customer what the customer want to buy. So the customer can see all the information about the items which they want to buy. The example about how they sell the items is portable media player. There are some clear favorites in the world of portable media players, but most people aren't aware of just how many options there are if you look beyond the most popular choices. To start with, there are very few players that are just for MP3s these days. You can watch video, view photos, record voice memos, store gigabytes of files, convert your old vinyl or cassette tape collections to digital format, and even use your PMP to tape your favorite shows straight from your television. SHOP.COM's Portable Media Player Buying guide will help to find the perfect device for the needs. The information they give to customer is :
Size: Media players can be so tiny, they can be worn as necklace pendants, or so laden with features and extras such as built-in speakers, that they stretch the definition of “portable”. Players can have two types of storage: hard drive, or flash-based. Hard drives have much higher capacity, but are also heavier and more expensive. The smallest flash players can weigh just over half an ounce, while a hard-drive player with a large LCD screen can weigh almost a pound. If you’re planning to run or do other sports with your player, go with flash.
Storage: Flash drives generally top out at 16 GB, while hard-drive players can go up to 160 GB. An average MP3 file (for a 3 and a half minute CD-quality song) takes about 3.5 megabytes of storage, so expect to get roughly 250 songs per gigabyte. With a large hard drive, you can carry your entire music collection (40,000 songs if you have a 160 GB drive), but if you’re a heavy video user, the space will go much more quickly, holding about 200 hours of video . General rule of thumb is to get as much storage as you can afford unless size is more important.
File Support: Every PMP will support MP3, but there are hundreds of file types, and the more your player supports, the more versatile it will be. Other popular audio formats are WMA, AAC, ASF, and WAV. If you want to view photos, you’ll want to make sure your player supports JPEG files. For video, there is MPEG 2 and MPEG 4, WMV, Flash Lite, H.264. Some players will support Audible audio books as well, which has its own proprietary system.
Battery: Most players will have rechargeable lithium ion batteries, but about half the time, the batteries are non-removable, and will require a manufacturer’s repair at additional cost after the battery runs its course in about two years. While being less eco-friendly, some less expensive players still use AA or AAA batteries. Playing time per charge (or fresh set of batteries) varies a lot, so be aware that for some players you’ll be charging every 4-5 hours, while others can go for more than 20 hours. Remember too, that watching videos takes much more battery juice and will run the battery down at least twice as fast.
Online Music Stores: Every player will be able to play music that’s already been digitized onto your computer from CDs, as long as they’re in a supported format. After that, things get trickier, if you have music from various online music stores. Apple’s iTunes uses a protected file format that will only work on iPods. Other stores will have their own restrictions which will limit where you can play those files. Complicating matters even more are the newer “all you can eat” subscription services which allow you to download unlimited music as long as you pay a monthly fee.
Extras: Some features aren’t standard but can be easily found if they’re important to you: microphones for recording voice memos; in-line encoding, which allows you to record any source into digital format; FM radio; Wifi for downloading music directly from the Internet, without a computer, PDA functions like calendars and address books; the ability to be used as a USB data drive, for storing files of any type.