The Btootos A90 Pro True Wireless Earbuds are high-quality earbuds designed for studio monitoring, DJing, and live monitoring. They come in a sleek black color with a wireless charging case. These earbuds offer Bluetooth connectivity and have a frequency range of 2.4-2.48 GHz. The Btootos A90 Pro earbuds are designed as in-ear only with a double earpiece configuration, making them suitable for various professional audio applications in the 2020s.