TEC TC-781 Eight Input Line Level Stereo Source Selector Switch

TEC TC-716 Line Level Audio Selector Expander Mulit Select Inputs Mixing

VFD Audio Spectrum Analyzer Bluetooth 5.0 Receiver 3.5mm AUX Selector (Black)

Radio Shack 4 Way High Power Stereo Speaker Selector Switch Control Center VTG

Stereo VU Meter Indicator Music Spectrum Analyzer 20 Segment LED Level NO DSP

TEC TC-716 Line Level Audio Selector / Expander (BLACK); Allows Mixing Inputs

TEC TC-716 Line Level Audio Selector / Expander (SILVER); Allows Mixing Inputs

TEC TC-716 Line Level Audio Selector / Expander Allows Mixing Inputs