For a single workstation set up you will only need a pair of speakers, but for multi-workstation set ups you will need a set of headphones for each workstation.
Bluetooth headphones can have a time delay between the signal and hearing the sound. Some wireless headphones can also have this issue, although the Thomson WHP3001BK Wireless Headphones are probably the best to use in a multi-workstation environment.
They operate on four different channels. If you intend to have more workstations you will need alternative systems. There is a button on the side of the headphones to switch channels, so you will need to instruct your pupils to press the button until they are tuned in to the right channel.
Alternatively, you can use a wired headphone, although trailing cables can be a nuisance and interfere with moving arms, unless the cables are long enough and carried around the rear of the body.
Another refinement is to have foot-operated switches to control the software. Serial ‘push to make’ footswitches can be wired into a 9-pin connector for a COM Port, if your computer has one, or connected to a USB COM Port adapter. This can then be controlled by the interface on the software.
USB footswitches are cheap and readily available on the internet. Although single action footswitches are available and can be programmed for multiple commands, a triple action USB footswitch is not that much more expensive and allows rounds to be started, the ‘go’ command and ‘stand’, or any other combination of commands, to be operated by different switches.
The footswitches come with a driver on CD. You may need to install a tool such as ‘WinZip’ to unpack the driver first.
Rather than needing to set up the footswitch in the software, these footswitches work by activating the keyboard shortcuts in each application. Currently these shortcuts differ between applications, but there are quite a few shortcuts available and you can programme your own shortcuts for each footswitch (such as bob and single) using the driver interface.