High-quality: Features HIFI sound quality, ensuring that audio is clear and crisp. Bluetooth: The Bluetooth has a protocol of 5.0. Sizes: Earphones: Approximately 13.4 mm x 22.6 mm x 24 mn | Charging box: Approximately 92.4 mm x 47.1 mm x 35.4 mm. CVC: Also comes with clear voice capture (CVC), making your voice sound clearer during calls. Earphones: Get TWS wireless Bluetooth earphones! Six colours: Comes in six stylish colours: black, white, pink, dark blue, light blue, and yellow. | Next Gen Wireless Bluetooth Earbuds - Black | Wowcher