1 Piece Audio Switcher. To solve old amplifiers and speakers without built-in bluetooth troubled, connect the speakers/amplifier 3.5mm audio port or 2RCA audio ports to easily listen to music wirelessly.
eBay
Multi-Functional Dimmer And Speed Control Switcher Cable for 5V~24V Devices - Dimmable Speed Control Switcher Cord
Aliexpress UK
AMX YP2011-02 professional presentation switcher. Supports VGA/RGB computer inputs, composite video and analogue audio. Designed for conference rooms and classrooms. Pulled from a working environment. Powers on – no further testing due to lack of legacy equipment. Includes power cable. Some light marks on top of unit. Please note: legacy analogue equipment – no HDMI.
eBay
2 in 1 out HD 4K 60Hz Bidirectional Switcher HDMI-compatible Switcher 1X2 Distribution for Projector PC Laptop
Aliexpress UK
2(1)-in-1(2)-Out 3.5mm Stereo Audio Switch Audio Switcher ，3.5mm Stereo Audio Switch Audio Switcher AB Switcher，3.5mm Stereo Audio Switch Splitter 2 x 1/1 x 2, with Mute Button and No External Power Required.
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HDMI-Compatible Switcher Splitter IR Remote Control Support Switch Three Switching Modes Switcher 4K 120Hz for PC/TV Box/PS 4/5
Aliexpress UK
1 Piece Audio Switcher. Interface: Stereo analog, AUX 3.5mm. To solve old amplifiers and speakers without built-in bluetooth troubled, connect the speakers/amplifier 3.5mm audio port or 2RCA audio ports to easily listen to music wirelessly.
eBay
2 Port HDMI-Compatible 2.0 Switch 4K 2x1 1x2 Bi Directional Switcher 2 Input 1 Output Splitter for PS4/3 TV Box Switcher Adapter
Aliexpress UK
Kramer VP-32xl VGA & RCA Stereo Audio Switcher, complete with power supply. In working condition. Free postage within UK
eBay
4K HDMI-Compatible Switch Splitter Bi-Direction 1x2/2x1 HDMI-compatible Switcher 2 in1 Out for PS4/3 TV Box Switcher Adapter
Aliexpress UK
Connect game consoles, VCRs or other audio/video sources to a single TV. This compact 3-way AV selector enables you to switch between 3 connected devices. .
eBay
USB KVM Switch Adapter USB 3.0 Switcher 2 Input 4 Output USB Switch KVM Switcher Printer Sharer For Computer Keyboard
Aliexpress UK
The Lindy Optical Audio Switcher / Kanex Audio Adapter is a versatile unit that allows you to extract 5.1 audio from your Apple TV4K.
eBay
2 Port HDMI-compatible 2.0 switch 4K 2x1 1X2 bi directional switcher 2 input 1 output splitter for PS3/4 TV box switcher adapter
Aliexpress UK
1 Piece Audio Switcher. Interface: Stereo analog, AUX 3.5mm. To solve old amplifiers and speakers without built-in bluetooth troubled, connect the speakers/amplifier 3.5mm audio port or 2RCA audio ports to easily listen to music wirelessly.
eBay
USB 3.0 Switch Selector 4 Port,KVM Switcher 4 Computers Share 4 USB Devices,USB Peripheral Switcher for Keyboard Mouse Printer
Aliexpress UK