2 x Z55H 3.85V battery. SONY WF-1000XM4. Battery Capacity : 3.85V 70mAh 0.29Wh.
ZeniPower Z55H Model for Sony WF1000XM4 Bluetooth Headset Battery Z55H
SONY WF-1000XM4 Battery - ZeniPower Z55H 3.85V (Twin Pack 2 X Batteries)
Centerpower IPC ZeniPower Z55H Replacement Battery for WF1000XM4 XM3 WF-SP900 Bluetooth Headset Battery
Genuine 2x ZeniPower Z55H 3.85V 270mwh SONY WF-1000XM4 Batteries
SONY WF-1000XM4 Battery - ZeniPower Z55H 3.85V 75mAh
2PCS ZeniPower Z55H 3.85V Battery + tools for Sony WF-1000XM4 Bluetooth Headset
