Why does my 4 jbl 3 cut in and out on my Samsung android a 10 e it.

Why does my JBLPulse 3cut in and out whith my android a 10 e when it is connected to 4 JBLPulse 3.I have talked to jbl tech SUPPORT and got no where

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0