http://www.ec21.com/ec-market/mp4 samsung firmware.html http://lisahkzd.en.ec21.com/MP4_Player--3564154_3569732.htmlFirmware upgradeable USB 2.0 high speed data transmission Built-in 1,800mAh rechargeable lithium battery 30 hours20090609 http://fengyueshu.en.ec21.com/4.3_Inch_Screen_MP5_4.3--3482266_3485190.htmlFirmware upgradeable USB 2.0 high-speed data transmission 3,000mAh lithium battery 30 hours music playback 10 hours mov20090414 http://lqstiny.en.ec21.com/MP5_Player--2818810_3352121.htmlFirmware upgradeable USB 2.0 high-speed data transmission 3,000mAh lithium battery 30 hours music playback 10 hours mov20090218 http://daisypeng870219.en.ec21.com/GPS_Navigator_KD_300--2866772_2866796.htmlfirmware updated. Optional: * RDS-TMC, European Communication Information Digital Broadcast. * Bluetooth,whose 20081217 http://widespace.en.ec21.com/33.6_QVGA_8GB_Touch_Screen--3151935_3151936.htmlfirmware upgrade Supports multi-tasking function,can read E-book and meanwhile listen to music. product color: black,w20081208 http://melanymak.en.ec21.com/4.3_GPS_with_Touchscreen_Bluetooth--3063672_3064320.html JD-431B 4.3"GPS with Bluetooth,FM transmitter,AV-in,MP4 SAMSUNG S3C2440A-400MHz Processor ¢ 4.3" (16:9) Wide v20081201 http://sztoprid.en.ec21.com/1.8_TFT_Screen_MP4_Plaer--745849_1151395.htmlFirmware can be updated from website to extend the function * USB2.0 Portable Disk, without Driver for Windows 2000 or 20061115 http://godier8000.en.ec21.com/Car_GPS_Navigation_System--1879925_1879926.htmlFirmware upgrade : Flash EPROM field programming software available Time Mark : Output 1 pulse/sec, aligned with GPS ti20070419 http://samia2008.en.ec21.com/GPS4001--2149363_2149538.htmlMp4,WMV *Audio support format: Mp3,WAV,MID *Picture support format:BMP,JPG,PNG,GIF *CPU: SAMSUNG S3C2440A-40 400MHZ *IC20070816