... and synchronously; Selectable Multi-recording modes,Single-channel, 2-channel,1-channel+Rhythm,60 Sec Compressible waveform record; Lead ... printing speed, filter etc; Single channel, 1+R(Rhythm)channel, 60 seconds compressible for any channel; Double channal synchronous printing ... compressible record need 10cm paper but for ordinal Single channel machine need 120cm paper.) to acquire long ...