Small compact two-way switch box enabling the connection of two separate radios to your bhi DSP noise cancelling product:Inputs: 2 x Mono 3.5mm Jack sockets. Output: 1 x 3.5mm mono jack socket & 1 x 3.5mm mono jack plug lead. Power handling: 3 Watts Maximum. Unused input is always terminated with a load to protect your audio outputs. Velcro pads are supplied to enable securing of the Mini Switch to your radio equipment.