Li-Polymer, Wireless Headset Battery fits Sony Wf-l900 Charging Case, Wh-ch400, 3.7V, 280mAh Mica Here’s why this product is

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Li-Polymer, Wireless Headset Battery fits Sony Wf-l900 Charging Case, Wh-ch400, 3.7V, 280mAh Mica Here’s why this product isLi Polymer, Wireless Headset Battery fits Sony Wf l900 Charging Case, Wh ch400, 3. 7V, 280mAh Get your wireless audio experience back on track with the Li Polymer Wireless Headset Battery, specially designed to fit Sony models including the Wf l900 Charging Case, Wh ch400, Wh ch500, and Wh ch510. Key Features Compatibility with various Sony models Reliable service life for uninterrupted listening Battery Part Number: Ace621733 Capacity: 3. 7V, 280mAh