For Samsung Galaxy J4 2018 J400 - Replacement Ear Piece Speaker

Restore telephonic vocal clarity and acoustic fidelity with this OEM-Specification Earpiece Receiver. Specifically engineered for the J400 (2018 Edition), this component is calibrated to match the original impedance and frequency response required for clear, distortion-free voice calls. It is the definitive hardware solution for resolving terminal audio issues such as "crackling voice audio," "extremely low call volume," or "total receiver silence" caused by moisture ingress or iron-filing accumulation in the diaphragm. Manufactured with high-grade copper voice coils, it ensures a 1:1 fit within the upper chassis housing.