Very good price for a pair of Wii microphones for example it is £17.99 for just one at Play; elsewhere this pack is selling for: -
The HUT £23.73
Amazon UK £24.99
The Bundle comprises of 2 White Microphones and a USB Hub.
Sing along and display your talent with the Logitech Vantage USB Microphones. Designed for singing games, this durable microphone will maximise your voice power. With high-quality construction and a 4.5 metre (15ft) cable, it's perfect for the trials of a busy gaming environment. Licensed for Wii.