Sony ULT Wear WH-ULT900N Main Control Board OEM Replacement Parts sm-t638 sim card reader replacement Large Band = 165–210mm wrists

Large Band = 165–210mm wrists

If you lost screws during a repair or need to replace stripped or damaged screws

Capacity: 3130mAh

Includes attached flex cable and all internal mounting points

Visible cosmetic wear

Sony ULT Wear WH-ULT900N Main Control Board OEM Replacement Parts sm-t638 sim card reader replacement Large Band = 165–210mm wristsThis is the original OEM main control board for the Sony ULT Wear WH ULT900N headphones. The central processing board that handles Bluetooth connectivity, ANC, audio processing, and all core headphone functions. A direct replacement for a failed or damaged main board. Brand: Sony (OEM Original) Condition: Grade A Excellent Fits Models: Sony ULT Wear WH ULT900N Key Features: Genuine OEM pulled part, tested and fully functional Board number 400410