The Logitech Z313 is a compact 2.1 desk speaker set for PCs, laptops and other devices with a 3.5 mm audio output. Two satellite speakers sit either side of your monitor while a downward-firing subwoofer under the desk adds bass, together delivering 25W RMS (50W peak): 15W for the subwoofer and 2 x 5W for the satellites. Connection is simply via the 3.5 mm input on the back of the subwoofer, so it also works with phones, tablets and media players. A wired control pod puts power, volume and a headphone jack within reach, handy for late-night gaming or calls. It's a straightforward step up from built-in laptop or monitor speakers for music, YouTube and movies in a home office or student room. Each satellite measures 146.2 x 89.4 x 81 mm and the subwoofer 228.4 x 150 x 220 mm (2.3 kg). In the box: two satellite speakers, the subwoofer and user documentation. Note: wired only, no Bluetooth.