The TF Card is a highly secure stamp-sized flash memory card. The TF Card weighs approximately two grams. The TF Card can be used in a variety of digital products; digital music players, cellular phones, handheld PCs (HPCs), digital cameras, digital video camcorders, smart phones, car navigation systems and electronic books.
-High transfer rate for fast copy/download
-High storage capacity
-Non-volatile solid-state; no moving parts maximizes battery power. Data is not lost when power is turned off
-Low battery consumption to maximize battery life in small portable devices
-Operating shock rating of 2,000Gs, equivalent to a 10-foot drop to the floor
-Security level complies with both current and future Secure Digital Music Initiative (SDMI) portable device requirements.

Mobile phones Compatibility List:

Motorola: V3x V360 E398 E360v V635 V710 A780 A840 E895 E770 C975 V975 C980 V980 A1000 E1000 V1000 A1010 V1050 V1150 E1060 E1120 SLVR V7 SLVR V8 ROKR E1
Samsung: A800 SCH-A950 SCH-A920 SGH-i550 D600 D730 D800 D820 E770 E900 ZV30 Z500 Z700 ZM60 i300 P850 D510 X700 X800
Siemens: Sx1 Sx 56
Nokia: 6125 6233 6136 6131 6234 3250
Orange: M1000,M2000,M2500,M500,M5000,SPV,SPV E100, SPV E200, Treo 600,Treo 650
O2: XDA,XDA Exec, XDA II, XDA IIi, XDA IIs, XDA Mini

Note: 1 megabyte (MB) = 1 million bytes; 1 gigabyte (GB) = 1 billion bytes. Some of the listed capacity is used for formatting and other functions, and thus is not available for data storage.