Portable Blender, 12.8 fl oz (380 ml)

Through the charging socket on the front of the base, from a USB port on a laptop, a power bank or a phone charger plug. There is no mains lead and no batteries to buy.

It is made for soft fruit, yoghurt and shakes. Add ice or hard frozen fruit only a little at a time with plenty of liquid, and stop if the blade slows or stalls.

Smoothies from soft or thawed fruit, protein shakes, milkshakes and salad dressings. Fill it no more than two thirds so the mix can move, and cut fruit into pieces of about 0.8 in (2 cm), as the supplier's directions suggest.

It weighs about 19.4 oz (550 g) and stands 9 in (22.8 cm) tall, so it slips into a gym bag or a backpack pocket. The supplier does not describe the lid as leakproof, so carry it upright once it has a drink inside.

The supplier gives no firm number of blends per charge, so top it up by USB when it starts to slow. A laptop port, power bank or phone charger plug will all do the job.