The Magpies' first team squad are currently based near Salzburg for a training camp and will take on 1860 Munich at the SaalfeldenArena Bürgerau on Friday, 15th July (kick-off 2.30pm local time, 1.30pm BST), then Mainz at the Kufstein Arena on Monday, 18th July (kick-off 4pm local time, 3pm BST).
And both games will be available to watch - in the UK and Saudi Arabia only - for free on NUFC TV.
NUFC TV is compatible with Chromecast, meaning you can stream the game via your television.
Mainz finished eighth in Bundesliga last term while 1860 Munich - runners-up in the European Cup Winners' Cup in 1964/65 and past champions of Germany - play in 3. Liga.
Eddie Howe's side arrived in Austria on Sunday, having beaten neighbours Gateshead 5-1 in their first friendly, played behind closed doors, on Saturday.
Recent signings Sven Botman and Nick Pope are likely to make their Newcastle bows in the matches. Tickets for both games are still available to buy here.
