This is the SONY wireless earbuds WF-SP800N. I have used them for about a year. They work and charge without any problems. They are waterproof, so you can use them even during sports where you sweat. Please refrain from purchasing if you are sensitive to used items. No returns or refunds accepted. Waterproof performance IP55, Bluetooth 5.0 compatible wireless earbuds. - Brand: SONY - Model: WF-SP800N - Accessories: Charging case, USB cable, instruction manual, ear tips - Bluetooth version: 5.0 - Waterproof performance: IP55 Thank you for viewing.