Fit Model: JBL WindPart Number: JBL GJ802540 Item No.:CS-JMW100SLCapacity:800mAhType:Li-PolymerVoltage:3.7VRate:2.96WhDimension:42.50 x 31.20 x 6.00mmNet Weight:15.2g / 0.54ozGross Weight:50g / 1.76oz