What is the batteries life expectancy, what kind of battery does it use, and is it replaceable? Also can it be used while connected to USB charger?
My plan is to buy a few for workers but if battery wont last long after a few months of continued use and recharge then better i go for something better.
Can it be used while connected to USB charger? Plan is for employees to use while at desk and if for some reason step away can just disconnect and continue use.
between 3 and 5 hrs depending on the volume and usage, and yes it can be used if you connect it thru the USB, but i dont really recommend it