Any Way to Measure Sleep Mask Battery?

It’s not shown in the list of bluetooth devices, or in Mindroid or Sleep

Hi @urbanhym, if you turn on the mask, does the diode blink?
If the device is not visible in the BT scan at all, you may need to contact Happy Electronics (the manufacturer and the seller). Their contact is kolman@happy-electronics.eu.

Hi Lenka. Yes the diode blinks, and I can use it for Mindroid and Sleep as Android, but it doesn’t show in devices, and I’m not sure that would show the battery level like it would in, say, Windows for example.

Hi @urbanhym, let me ask Mr. Kolman from Happy Electronics.

Hi,
Unfortunately, it does not display the battery status.