2 Wired / Wireless Replacement Li-Polymer Battery for Beats by Dre Studio 2.0☛ Item SpecificationVoltage: DC 3.7VCapacity: 560mAhCondition: Brand New Replacement Product, works as Genuine parts, 100% OEM Compatible!!☛ Repalce Part NumberAEC64333 PA-BT02☛ Compatible ModelsBeats by Dre Studio 2.0..