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.
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Lemorele 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
USB KVM Switch Adapter USB 3.0 Switcher 2 Input 4 Output USB Switch KVM Switcher Printer Sharer For Computer Keyboard
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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8K 60Hz HDMI-Compatible Switch Splitter Bi-Direction 1x2/2x1 HDMI-compatible Switcher 2 in1 Out for PS4 TV Box Switcher Adapter
Aliexpress UK
L / R Stereo Audio Bi-Directional Switcher. ① Select audio input between 1 and 2 with 1/2 switcher and get one output;. 1 L / R Stereo Audio Bi-Directional Switcher. ② Connect one audio source to IN/OUT port and two audio outputs to 1/2 port;.
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4K HDMI Splitter 2 Ports Bi-directional HDMI Switcher 1 in 2 Out HDMI Converter 3D HDR HDCP For PS4 Xbox HDTV Switcher Adapter
Aliexpress UK
2-way amplifier/speaker selector: Both working modes (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel select button, convenient to compare the sound quality of 2 pairs of different speakers or 2PCS power amplifiers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets. Strong compatibility for audio devices: Support doing comparisons between different types of amplifiers such as BTL, class A, class B, class D, tube amp etc.. Each channel can pass up to 200W power, also suitable for the comparison between most passive speakers. User-friendly design for easy use: Designed with remote control to operate from the distance; add LED display screen and channel indicators, much clearer to show the working status in real time.
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Bi directional switcher 2 input 1 output Splitter 2x1 1x2 2 port HDMI-compatible 2.0 switch 4K for PS3/4 TV box switcher adapter
Aliexpress UK
4-way(1-in-4 output) audio splitter, 4 channel can output at the same time, convenient for users to do contrasts among headphone, power amplifier and active speakers etc, each channel with independent volume control, easy to adjust proper volume for different audio devices.
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HD 4K 60Hz Bidirectional Switcher HDMI-compatible Switcher 2 in 1 out 1X2 Distribution for PC Laptop Projector
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
4K 60Hz HDMI-Compatible Switch Splitter Bi-Direction 1x2/2x1 HDMI-compatible Switcher 2 in1 Out for PS4 TV Box Switcher Adapter
Aliexpress UK
Supports full HD, 1080P, full 3D, 4K 2K 2160. Supports 1080P, 4K, YUV4:2:0 RGB 8.8.8 4K60Hz. 4k@60HZ Resolution: Supports a multitude of video resolutions, including 4K x 2K, 1080P, Ultra HD, 3D, HD audio and etc.
eBay
HDMI Splitter 2 Ports Bi-directional HDMI Switcher 1 In 2 Out HDMI Converter 3D HDR HDCP For PS4 Pro/4/3 TV Box Switcher Adapter
Aliexpress UK