Top up function Grace| Customer Technical Support Supervisor November 09, 2018 08:17 Updated Follow If you have multi devices, you can sequence devices to keep the most important device shows on the top. Related articles Sleep mode function How to setup micro SD/TF card? What is maximum storage for SD/TF card? Turn on/off Status light or night visison Does Camera have Bluetooth? Does it support PC/IFTTT system? Comments 0 comments Please sign in to leave a comment.