HQRP Battery for Xact XB10 fits WristLinx X2X, Wristlinx x2x-2, Wristlinx x33xif, Wristlinx x33xif-2, Wristlinx x3x, Wristlinx x3x-2 x32x-2 Wristwatch Two-Way Radio XB-10 Wrist-Linx Watch + Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.7V; Capacity: 550mAh; Li-Ion; 100% compatible with Original Battery; 200 Days warranty!