Replacement battery fits 5 Corsair compatible models. Specifications: 1200mAh, 3.7V, Li-Polymer. Compatible with: HS75 XB, HS70 SE Void Pro RGB, Void Pro RGB, HS70SE, Virtuoso Void RGB. Replaces: Corsair AEC524050, Virtuoso AEC524050. Corsair replacement battery designed for Headset devices. Built to OEM specifications for reliable performance.