This is a rechargeable SUNMI 3.7V 90MAH 0.33WH AHB481221 Battery . High quality and long lifetime, this AHB481221 battery lets you work seamlessly when you are on the move for business trips or vacations. All our Li-ion replacement batteries for SUNMI AHB481221 Headphone have been tested and proven to match and/or exceed original battery performance and are […]