New Sound bar Replaced Remote AKB73575401 AKB73575421 for LG NB3520A NB3520ANB NB2420A NB3250A NB3250A NB3520A2 NB3250A NB3530A NB3532A NB3530ANB NB4530B NB2520A NB3520A NB3520A NB2338A NB3740A New Sound bar Replaced Remote Control AKB73575401 AKB73575421 for LG. Do not need any program, only put into new battery can work well. USA Seller, quick shipping! 30 days Warranty! Some knowing working model as below: NB3520A NB3520ANB NB2420A NB3250A NB 3250A. NB3520A2, NB3250A Note: if the remote you received can not work with your Device, please contact us, we will reply to you! Thank you!