Santek EZ Door Sign (2nd Gen) 2.9 Inch E-Paper Digital Signage, Rechargeable, Cordless, Low Power Tricolor Eink Display with 5 Customizable Messages, Office Door Sign, Available and Away, Busy, On Air Gray & cable Pack of 1 Color:Gray & cable Female National Pipe Taper (NPT)

Female National Pipe Taper (NPT) threads for use with male threaded pipes

and trading card games like UNO

2 is designed with new touch-control power on off idea by human finger

Anti-cracking

Santek EZ Door Sign (2nd Gen) 2.9 Inch E-Paper Digital Signage, Rechargeable, Cordless, Low Power Tricolor Eink Display with 5 Customizable Messages, Office Door Sign, Available and Away, Busy, On Air Gray & cable Pack of 1 Color:Gray & cable Female National Pipe Taper (NPT)Santek EZ Door Sign (2nd Gen) 2. 9 Inch E Paper Digital Signage, Rechargeable, Cordless, Low Power Tricolor Eink Display with 5 Customizable Messages, Office Door Sign, Available and Away, Busy, On Air Product Features Customize Messages Easily: Update text or images with the Santek EZ Sign App (Windows only) using a USB C cable for connection. The cable is only required during updates, so your sign can display messages without staying connected.