Purchased from Amazon Single-ear Bluetooth 5.4 Earphone (Japanese voice prompts and can be used on either ear) Ear-hook Bluetooth Earphone with ENC microphone, hands-free calling, IPX5 waterproof, Type-C fast charging, 20 hours of playback, LED battery level display, physical buttons, automatic pairing, instant connection wireless Bluetooth headset for business/driving (Black) Thank you for viewing.