The A4Tech B20 in Grayish White is a pair of True Wireless Stereo earbuds from the 2Drumtek series, designed for seamless audio playback across your PC, laptop, tablet, or mobile phone. They feature a unique hybrid diaphragm M.O.C.I. driver made from nano mycelium and carbon fiber, which helps deliver a balanced sound profile. Connectivity is handled by Bluetooth v5.2, ensuring a stable link and quick pairing that allows the earbuds to connect automatically after the initial setup. You can use either earbud independently for calls or wear both for a full stereo experience. These earbuds are housed in a durable aluminum charging case that provides an additional 15 hours of playtime, extending the total battery life to 20 hours when combined with the 5 hours offered by the buds themselves. To keep things simple, touch controls let you skip tracks, manage calls, and activate your voice assistant, such as Siri, without reaching for your device. With an IPX4 rating, they are resistant to water splashes from any direction, making this Grayish White model a reliable companion for those who want a versatile audio solution for daily commutes or light workouts.