Sony ULT WEAR Wireless Noise Cancelling Headphones - Off White Wh-ULT900N/W Family_Aspire The built-in Battery Management System
Yard notes & kiln story
Description
Sony ULT WEAR Wireless Noise Cancelling Headphones Off White Wh ULT900N W Family_Aspire The built in Battery Management System The built in Battery Management System protects the cell from getting damaged like: over or under voltage Delivers up to 4 months of battery life when connected via Bluetooth® and up to 1 month when connected via 2