Sony ULT Wear WH-ULT900N Main Control Board OEM Replacement Parts sm-t638 sim card reader replacement the only difference is slightly

the only difference is slightly slower battery preservation while stored

Capacity: 3130mAh

The Gear IconX lets you switch songs

Automatic Pause When Removed: Sensors detect when earbuds are removed and automatically pause your music for a seamless experience

Sony ULT Wear WH-ULT900N Main Control Board OEM Replacement Parts sm-t638 sim card reader replacement the only difference is slightlyThis 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