Sony 4-543-905-31 Ear Piece Long Medium Headphone Part

Product Description

The SONY 4-543-905-31 is a long-style, medium-size ear piece replacement part designed for Sony in-ear headphones and earphones. This is an OEM-sourced component used to restore a proper acoustic seal and secure fit when the original ear tip is lost, torn, or worn. A correct-fitting ear piece directly affects sound isolation and bass response, making this a functional repair part rather than a cosmetic one. Licensed HVAC technicians do not typically service consumer electronics, so installation is generally performed by the end user or a consumer electronics repair technician.

This ear piece is sized for medium fit applications and is identified in Sony parts documentation as the long variant, which affects how deeply it seats in the ear canal. It is listed as a compatible part for the Sony MDR-XB50BS wireless sport earphone line. Consumers and repair shops sourcing replacement ear tips for that model should confirm the size designation before ordering, as Sony typically offers small, medium, and large variants.

Key Features

• Long-style ear piece providing a deeper canal fit compared to standard-length tips
• Medium size designation for average ear canal fitment
• OEM Sony replacement part for accurate fit and material consistency
• Compatible with MDR-XB50BS as listed in Sony parts documentation

Compatibility

Listed as a replacement ear piece for the Sony MDR-XB50BS wireless sport earphone. Confirm size designation matches the original installed ear tip before ordering.

Installation Notes

No tools are required to replace an ear tip on most in-ear earphones. Power off or disconnect the earphone before handling. Align the ear piece opening with the nozzle of the earphone driver housing and press firmly until seated. Do not use adhesives or solvents, as these can damage the silicone material and the driver housing finish.

Technical Specifications

• Style: Long
• Size: Medium (M)
• Part Type: Ear Piece / Ear Tip

Standard Information

• Brand: SONY
• Manufacturer Part Number: 4-543-905-31