Soundsync long-term pairing

Hi! Using Soundsync A3341 to transmit audio from a touchscreen to a wireless speaker. I’m able to pair successfully but after some time the Soundsync stops transmitting. If I turn off and then back on it reconnects.

Should the device be able to stay paired continuously if it’s plugged into power via USB on the screen?

Anything else I can do to maintain connection continuously? This is for a support technology trial for people with disabilities, so having continuous connection is important for hearing impairment of the person using screen. Thanks!