1) All-in one card reader/writer 2) USB 2.0 transfer rate up to 480Mbps, backward .USB 1.1 transfer rate up to 12 Mbps. 3) No external power required, just powered by USB connection cable 4) 2LED ,1LED indicator to indicate card reader access, 1LED power. 5) Fully Plug & Play and Hot Swapping support. 6) Lower power consumption 7) All in 1 design ,1 memory card slots supporting 8 digital Memory cards listed below. 8) Support Windows Me/2000/XP and Mac OS X without USB device drive 9) Support Windows 98 se with USB device driver 10) Power supply : DC+ 5 Volts supplied by USB Port 11) Durebility :10.000 cycles of ion /removal Bluetooth 1) Bluetooth specification V1.2 Compliant 2) Supporting profiles :Networking, Dial-up, Fax, LAN, access, and Headset 3) Operation system : Windows 98, 98se, Me, 2000,xp 4) Interface: USB compliance 5) Symbolrate : 1Mbps 6) Receiving / Sending range : 20m 7) Convert non Bluetooth PCC Bluetooth Enabled. 8) Wireless connect to Bluetooth devices such as Mobile Phones, PDA or PC, for data transfer , Networking ,and Dial-up ,Fax 9) Enabled wireless connection to Bluetooth headset. 10) Supporting Bluetooth voice data. 11) Supporting Multi languages