2013 Ultegra Di2 6770 (10 speed) electronic groupset

Overall in very good condition. The rear derailleur does have some nicks in it. I have used this groupset until very recently and I can confirm that all is in working as it should. I had a local trek shop perform a firmware update on the groupset in November, so the group is all up to date.

I have just replaced the rubber on the brake/shift levers (the old ones felt a little sloppy) and they haven't been used since.
Groupset includes:

Dura Ace Chain (not shown, but in excellent shape and recently waxed).
FSA gossamer brakes (stock image shown, the actual brakes are nearly new)
Ultegra 6770 Di2 brake/shift levers.
Ultegra 6800 crankset (172.5mm, 50/34)
Ultegra 12-25 cassette
Ultegra 6770 Front derailleur
Ultegra 6770 rear derailleur.
Di2 battery and frame mount (short)
Di2 battery charger
all the e-tubes that the groups came with

Can sell just the Di2 components for $550 (i.e., no crank, brakes,...)