The FB-22 ZEROWire is a True Wireless Bluetooth5.2 In-ear earbuds. It has Equipped a 250mAh big battery to store and also charge the earbuds. The charging case is fully matt finished. It has Bluetooth 5.2 technology that provides you with fluent connectivity and the Dual mic ENC Noise Cancellation for Calls. For control it has fully touch function. The sound is focused on bass, and the earbuds are designed foe sportsman too cause it has Anti-drop Movement.