The SWING is a portable AudioCodec with built-in ISDN Terminal Adapter, dual port interface compatible with ETSI (Euro-ISDN) and ANSI (National-1) communication Standards for 64 and 128 KBPS.

It also features a Digital Telephone Hybrid for analog lines, incorporating features such as Frequency Extender and Echo Cancellation, and connection through cell phone as a back-up or additional coordination circuit for the ISDN Connection.

Furthermore, it includes a pre-mixer with return and headphone amplifiers and a standard 4W connection. Two MIC inputs and one switchable MIC/LINE input with independent gain controls.