Product Description A Custom Battery for the Arianne Myotron: Stun Gun - CUSTOM-183 Voltage: 12 Capacity: 1800 mAh Compositon: Lithium Fits and Replaces Arianne Myotron Stunn Gun Does not work with VENUS model we have no battery for this model. Dimensions: 49.5mm X 51.3mm X 16.9mm