Control modules which allow you to take advantage of the embedded controls in any TOG 24 MUSIC product from the PLAY range. Select your MUSIC product and then choose the control module which most closely matches your requirements. The Volume controller allows you to control the volume of any MP3 player via the the embedded controls in your product. The iPod controller allows to connect your iPod to the garment or accessory and control not only volume, but play/pause, and track forwards and backwards. The top of the range control module is the iPod/Bluetooth module- with all the functions of the iPod module, plus the added functionality of being able to take calls from your mobile phone via Bluetooth™ technology. Compatability information: Volume controller-compatible with any type of MP3 or audio player with a 3.5mm headphone socket. iPod controller-compatible with any iPod player that has a dock connector. iPod/Bluetooth controller-compatible with any iPod that has a dock connector. Compatible with any mobile phone that has Bluetooth.