2 pcs For SONY WF-XB700, WF-SP700N, WF-SP900, WF-1000XM3 Battery - CP1254 (A3)
CP1254 (A3). Remove the old battery, carefully install the new battery on the battery box, tighten the screws, and then connect the wires of the new battery. For SONY WF-XB700, WF-SP700N, WF-SP900, WF-1000XM3 wireless earphones.