The Tristar BW-4791 heated cushion is fully cordless and provides up to 2 hours of pleasant warmth. It measures 45 x 45 cm and has three temperature settings. It heats up in just 10 minutes. The device features a removable cover that is machine washable, while operation is simple thanks to the easy-to-use on/off switch. It is ideal for relaxing on the sofa, use at the office, or staying warm on the go.