IPX5 waterproof wireless earbuds, Bluetooth 5.0, equipped with a 400mAh battery. - Model: S48 - Type: Wireless Earphones - Bluetooth Version: 5.0 - Battery Capacity: 400mAh - Waterproof Rating: IPX5 - Charging Method: Type-C Earphones Bluetooth [2025 Open-Ear Ultimate Advancement Version - Improved Sound Leakage, Unnoticeable Fit, and Sound Quality Evolution] Wireless Earphones Bluetooth 5.4 OWS, Ear-Hook Type, Open-Ear, Up to 40 Hours of Continuous Playback, Doesn't Block Ears, Innovative Compared to Bone Conduction, Automatic Pairing, Type-C Charging, Built-in Microphone, Instant Connection, with Microphone, IPX5 Waterproof, Compatible with iPhone/Android Thank you for viewing. I purchased this on Amazon, but I haven't had a chance to use it, so it's been stored unopened and unused. The Amazon price as of October 2025 is 1740 yen. Thank you for your consideration.