Table:
text: Comparison of e-book readers
Non-electronic-paper displays
Non-electronic-paper displays
Maker Model Intro_year Screen_size_inch Screen_type Weight Screen_pixels Hours_reading Touch_screen Wireless_network Internal_storage Card_reader_slot
Aluratek Libre Touch eBook Reader 2011 7 LCD g (oz) 480 × 800 8 Yes Yes, Wi-Fi 4 GB microSD
Aluratek Libre Air eBook Reader 2011 5 LCD g (oz) 480 × 640 20 No Yes, Wi-Fi 512 MB microSD
Aluratek Libre Color eBook Reader 2010 7 LCD g (oz) 480 × 800 24 No No 2 GB SD
Aluratek Libre Pro eBook Reader 2009 5 LCD g (oz) 480 × 640 24 No No 256 MB SD
Amazon.com Kindle Fire 2011 7 LCD(IPS) g (oz) 600 × 1024 8 Yes Wi-Fi 8 GB (6 GB) No

text: Comparison of e-book readers
Non-electronic-paper displays
Non-electronic-paper displays
Maker Model Intro_year Screen_size_inch Screen_type Weight Screen_pixels Hours_reading Touch_screen Wireless_network Internal_storage Card_reader_slot
Apple Inc. iPad (3rd generation) 2012 9.7 LCD(IPS) g (oz), g (oz) 2048 × 1536 10 Yes Wi-Fi, 3G 16-64 GB SD via camera connection kit
Apple Inc. iPad 2 2011 9.7 LCD(IPS) g (oz) 768 × 1024 10 Yes Wi-Fi, 3G 16-64 GB SD via camera connection kit
Apple Inc. iPad 2010 9.7 LCD g (oz) 768 × 1024 9 Yes Wi-Fi 16-64 GB SD via Camera Connection Kit
Barnes & Noble Nook Color 2010 7 LCD g (oz) 600 × 1024 8 Yes Wi-Fi 802.11b/g/n 2 GB, 1 GB available microSDHC
Ectaco jetBook 2008 5 LCD g (oz) 480 × 640 20 No No 112 MB SDHC
Elonex 705EB 2010 7 LED g (oz) 480 × 800 8 No No 4 GB microSDHC

text: Comparison of e-book readers
Non-electronic-paper displays
Non-electronic-paper displays
Maker Model Intro_year Screen_size_inch Screen_type Weight Screen_pixels Hours_reading Touch_screen Wireless_network Internal_storage Card_reader_slot
Notion Ink Adam 2011 10.1 Pixel Qi g (oz) 600 × 1024 15 Yes Wi-Fi, 3G 1GB DDR2 RAM 1GB SLC microSD
PocketBook PocketBook IQ 701 2010 7 LCD g (oz) 600 × 800 8 Yes Wi-Fi 2 GB SDHC
TrekStor eBook Reader 3.0 2011 7 LCD g (oz) 800 × 480 8 No No 2 GB microSDHC
Zzbook eReader HD 2010 7 TFT-LCD g (oz) 800 × 480 8 No No 2 GB microSD
Maker Model Intro year Screen size (inch) Screen type Weight Screen pixels Hours reading Touch screen Wireless network Internal storage Card reader slot

Question: What wireless network did LCD displays with 4GB internal memory use comparing e-book readers among non-electronic paper displays?