Yes, if the manual shows you that the unit still functions. The analog sound quality of the Select 2 is actually preferred by some purists who dislike the "digital lag" of modern Bluetooth muffs.
Always remove batteries if the headset is going to be stored for a long period (more than a month). Leaking batteries can corrode the contacts, rendering the unit useless.
: The unit uses two AA batteries located in the ear cup. The expected lifespan is approximately 40 hours .
