• Music input for CD player, cassette player or AM / FM receiver
• Audio output for recording ATC flight dialog, a great training tool for any pilot
• Size - 4" x 2.9" x 2"
• Weight - 14 oz with battery and DC power cord

The SPO-22N portable intercom is like the SPO-22 , however it incorporates special high-noise circuitry. It works well in Ultra-Lights and other high-noise environments, and with hand held radios.