Macbook Air 13-inch 2011 and 2012 model selling for $799 and $949 in ARNCLIFFE, New South Wales for sale

Macbook Air 13-inch 2011 and 2012 model selling for $799 and $949
There are two different Macbook Air for sale with different price, $799 and $949.
Please read through their details as following:
(the pictures uploaded are actual photos of the products we are selling. )
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Late 2011 Macbook Air 13-inch, Serial Number: C02GY4TPDJWT. $799 ONLY. FIXED PRICE, FINAL OFFER!!!
Like brand new condition, always with case, no scratches at all, working perfectly.
battery cycle count only 278, that means it only be charged for 278 times since bought.
Intel Core i5 processor 1.7GHz (Turbo Boost up to 2.7GHz).
13.3-inch LED-backlit glossy widescreen display, 1400-by-900 resolution.
4GB of 1333MHz DDR3 SDRAM.
128GB PCIe-based Flash Storage SSD.
Intel HD Graphics 3000.
Latest MacOSX 10.10 Yosemite updated and office for mac 2011 are newly reinstalled.
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Late 2012 Macbook Air 13-inch, Serial Number: C02KDH8FDRVC. $949 ONLY. FIXED PRICE, FINAL OFFER!!!
Like brand new condition, always with case, no scratches at all, working perfectly.
battery cycle count only 136, that means it only be charged for 136 times since bought.
Late 2012 Macbook Air 13-inch, Serial Number: C02KDH8FDRVC.
Intel Core i5 processor 1.8GHz (Turbo Boost up to 2.8GHz).
13.3-inch LED-backlit glossy widescreen display, 1400-by-900 resolution.
4GB of 1333MHz DDR3 SDRAM.
128GB PCIe-based Flash Storage SSD.
Intel HD Graphics 4000.
Latest MacOSX 10.10 Yosemite updated and office for mac 2011 are newly reinstalled.
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we are a computer and phone shop which selling brand new or used items as cheap as we can.
so we will not reply to any cheaper offers or do any negotiations.
our shop receipt will be provided as a proof of purchase.
3 days return policy will apply if any hardware issues.
pickup only in store at Arncliffe, NSW 2205.
(next to Wolli Creek, a few stops from Central Station, in Rockdale Area).
please text ******** 501 + click to reveal , no phone calls and emails, thanks.