Any of the following folks can probably do their work in the background, so the seller will only be working with you.
Ma ọ bụ ma eleghị anya, ndị ọkà okwu gị na-arụ ọrụ kachasị mma n'ịbagharị nanị elu na etiti, ya mere i nwere ike ịhapụ nkwụsị ahụ naanị nye subwoofer