Oppo A78 4G upper internal earphone

The upper in-ear speaker (Earpiece Speaker) for the Oppo A78 4G phone is a high-quality spare part designed to replace the damaged speaker to ensure clear sound during calls. Features and specifications of the part: Function: Delivering the other party's voice clearly during phone calls. Compatibility: Fully compatible with [OPPO A78 4G] phone. Quality: Clear and high-quality sound, resistant to dust and daily use. Type: In-ear speaker (different from external speakers - Loudspeaker). Signs of speaker damage and need for replacement: Severe or significant decrease in call volume. Muffled or crackling sound. Complete sound cutoff. Advice: It is preferable to install the part at specialized maintenance centers to ensure the safety of the phone.