Top critical review
One person found this helpful
Suck battery power like ravenous vampires.
on 11 August 2017
They work really well - very clear sound to quite a distance. However there is very little point having them work so well when they drain the batteries so quickly! Within three hours of very sporadic use the batteries are dead, I tried a new set, and the same happened again with barely using them - not useful at all having the battery run out right in the middle of using them to keep tabs on a teen with Asperger's.