STUODIOFINIX 4-Channel Mini Bluetooth Amplifier 120w for Passive Speakers with TWS,AUX,MIC,USB,Replacement Part,Suitable for Wall/Ceiling/Marine/Bookshelf Speakers

[Universal Bluetooth Amplifier] Suitable for various brands of wall mounted speakers, ceiling mounted speakers, marine speakers, bookshelf speakers, and other passive speakers. [Bluetooth 5.1 ] Built-in Bluetooth 5.1 core, with faster transmission speed, longer transmission distance, and more stable performance. Compatible with multiple new and old versions of speakers, allowing you to enjoy excellent and stable output music anytime, anywhere. [Easy to Install] Small, lightweight mini amplifier is easy to carry and install. The flat design makes it easy to install on flat surfaces such as walls, ceilings, cabinets, and pre-cut speaker openings for any flat surface in a home, office, marine boat, professional or custom audio application.

[Multi-Functional Amplifier] Mini Control Bluetooth Receiver with Bluetooth, TWS, AUX, MIC, USB, and MONO features. Connect freely and enjoy music with ease. [What's in the Package] 4 channel Bluetooth amplifier box x 1, 24V5A power adapter x 1, user manual x 1, screwdriver x 1, screws x 2, power cord x 1