It is designed for use in the Sony WF1000XM4 Bluetooth headset.
Centerpower IPC ZeniPower Z55H Replacement Battery for WF1000XM4 XM3 WF-SP900 Bluetooth Headset Battery
2PCS ZeniPower Z55H 3.85V Battery + tools for Sony WF-1000XM4 Bluetooth Headset
ZeniPower Z55H Bluetooth Headset Battery for Sony WF-1000-XM4 (2pcs)
2X ZeniPower Z55H 1254 3.85V + Case BOX battery for Sony WF-1000XM4 Earbuds
2 Pcs ZeniPower Z55H - Earbud Replacement Battery for Sony WF-1000XM4 EARBUDS
Z55H ZeniPower Replacement Battery for Sony WF-1000XM4 – Power Sound
