Thank you for the product interest and inquiry. The Due’ 6600 Unit has been in market for over a year and sold within National Retail, Mass Merchant and specialty retail channels. Factory defect and/or return less than .002%. Battery Cells are Samsung manufactured and top in class. At the same time, the Due’ 6600 is packaged with six connector tips, micro usb charger and K3 Mesh Travel Bag for your transport needs. Backed with a 365 day/one year warranty program and 24/7 product support, the Due 6600’ is an incredible value.
If you want to step up your capacity to the 12000 mAh level, you will not find a better value for a Top Tier 12000 mAh product than today on Woot! Snag one while you can.
Please let me know if you have any additional questions. Thank You.