S?n ph?m b?o hi?m chính K? ho?ch b?o v? & ch?m sóc s?c kh?e K? ho?ch tích l?y K? ho?ch ??u t? S?n ph?m b?o hi?m b? tr? Ch?m sóc khách hàng Now on to the fundamental challenge, I purchased this unit faulty, the left output didn't perform. My i