This is a more expensive splitter, but it is certainly worth the extra money. Whereas cheaper splitters break and come apart easily in a school environment, the RPA360 is made from thick, top quality moulded plastic. It is extremely reliable and long lasting.
The configuration is 2 x small (3.5mm) stereo jack sockets to one small (3.5mm) stereo jack plug in a solid adapter.
The red and black design is attractive and practical and the connectors and strong and durable to ensure complete reliability.