Mailbag in two Parts:

Content Part1:
00:40 125kHz RFID tags http://s.click.aliexpress.com/e/cdeh3hDW
00:40 125kHz RFID reader small round http://s.click.aliexpress.com/e/eHe9MnW
01:55 13.56MHz RFID tag http://s.click.aliexpress.com/e/bTy0lfLi
02:26 125kHz RFID stickers http://bit.ly/2PgM2c0
03:05 13.56MHZ/125KHZ RFID reader http://s.click.aliexpress.com/e/bHqARHEY
03:38 125kHz RFID reader (cheap) http://s.click.aliexpress.com/e/bVY4FZfS
03:59 Voice Module (ISD1820) http://s.click.aliexpress.com/e/iXnyESy
04:53 UV sensor http://s.click.aliexpress.com/e/bDf1ym9S
05:49 TPL5110 http://s.click.aliexpress.com/e/c4uEBXFS
06:40 GPS module http://bit.ly/2MR63UY
07:07 RAK Gateway PCB https://github.com/hallard/RAK831-Zero
07:13 RFID credit cards (125kHz) http://s.click.aliexpress.com/e/cd2P1yMg
07:13 RFID credit cards (13.56MHz) http://s.click.aliexpress.com/e/bc5RhdCc
07:40 Raspberry Pi 3+ http://bit.ly/2L5z0uI
08:07 RFID Stickers (13.56MHz) http://s.click.aliexpress.com/e/cW0iv1q0
09:25 RFID reader (dual mode) http://s.click.aliexpress.com/e/cpNlvjWY
10:23 Piezo elements http://s.click.aliexpress.com/e/b5h1WHJ6
10:23 Piezo elements http://bit.ly/2vRVc6t
10:23 Piezo elements http://bit.ly/2BfD8IG
10:23 Energy Harvester http://s.click.aliexpress.com/e/c2M5gBhe
11:38 TTGO ESP32 Lora T-Beam http://bit.ly/2OLaUHR
13:02 TTGO ESP32 Lora V2.1 http://bit.ly/2OHUwYw