The Z50 might be a small speaker but it produces some really big sound (10 Watts of peak power, to be exact) – and is highly portable, too. It weighs in at a mere 260g and measures 106.5mm X 98.6mm X 98.6mm, so can go with you pretty much wherever you want. Just plug and play in audio devices with 3.5mm output, such as smartphone, tablet, laptop or MP3 player.

We have two available – one in Magenta and the other Ocean Blue. To enter, fill in your details below and tell us the colour you like the best. The two winners will be drawn from all completed entries.

Entries close Thursday 24 December.