These H21 Microlab speakers connect via Bluetooth technology with compatible devices such as smartphones and laptops to wirelessly amplify your digital music. It features a two-way design with 3.5-inch German patented woofers, as well as wooden cabinets and leather finishing for a stylish look. These computer speakers combine a Peter Larson silk dome tweeter and a Kurt-Muller dome diaphragm to project high-quality musical sound through the room. Since the speakers can be played anywhere within a 30-foot range of a connected device, users have the flexibility to continue using their phone without having to stay tethered to the device.