EC21 Selling Leads Catalogs - amv mp4 firmware upgrade http://www.ec21.com/offers/amv mp4 firmware upgrade.html Sell MP4 Player(ZB-M4-021)http://www.ec21.com/offer_detail/Sell_MP4_Player_ZB_M4--8543097.htmlFirmware upgrade 9)Flash memory: 128~8GB 10)Super high speed USB 2.0 port 11)ID3 supported (synchronized display of son20091121 Sell MP4, MP3 Player, Digital Photo Frame and Digital Camerahttp://www.ec21.com/offer_detail/Sell_MP4_MP3_Player_Digital--2143451.htmlAMV, MPX, MPG, MPEG, MOV and AVI 2) Upgrades firmware of product function 3) FM high fidelity radio, strong and big aut20090911 Sell Gen4 nano Music Playerhttp://www.ec21.com/offer_detail/Sell_Gen4_nano_Music_Player--6259875.htmlUSB line a; 3,3.5 pin a headset; 4, a charger; 5, Manual 1; Firmware upgrade to support functions warranty : two years20090827 Sell hot sellinghttp://www.ec21.com/offer_detail/Sell_hot_selling--8261247.htmlUSB line a; 3,3.5 pin a headset; 4, a charger; 5, Manual 1; Firmware upgrade to support functions warranty : one years20090812 Sell mp4 player with camerahttp://www.ec21.com/offer_detail/Sell_mp4_player_with_camera--5849866.htmlFirmware upgrade 9)Flash memory: 128~4GB 10)Super high speed USB 2.0 port 11)ID3 supported (synchronized display of son20090321 Sell MP4 Player with 2.4 Inch TFT, and Support Mini SD Cardhttp://www.ec21.com/offer_detail/Sell_MP4_Player_with_2.4--4864607.htmlProduct Description Product Features: 1,New elegant fashion design, good outlook 2,Firmware can be upgraded free from w20090321