Features and benefits Dual input options: 3.5 mm aux input plus Bluetooth 5.0 for wireless audio. Use wired sources or stream from phones, tablets, and other Bluetooth devices. performance Bluetooth 5.0 amplifier board with a builtin filter that delivers clear audio output. Compatible speaker range: 10 W to 200 W, 4 Ω or 8 Ω speakers. Recommended power supply: 12 V to 24 V DC. Compact, easytoinstall design with standard power and speaker connectors for quick wiring and mounting. Twochannel stereo, fidelity digital amplifier: designed for efficient signal transmission and wide audio performance. How this product solves problems Eliminates the need for separate Bluetooth receivers and amplifiers by combining both functions on a single board. Makes upgrading passive speakers simple: connect the board, a power adapter, and your speakers to add Bluetooth streaming and amplified sound. Fits into small enclosures or retrofit projects thanks to its compact size and straightforward connections. Key specifications Inputs: 3.5 mm aux and Bluetooth 5.0 Speaker compatibility: 10 W–200 W, 4 Ω / 8 Ω Power input: 12 V–24 V DC (recommended) Output: twochannel stereo, filtered amplifier output for clear sound Installation and connectors Standard power input terminals and speaker output terminals allow direct connection without special adapters. Simple wiring makes it suitable for DIY installations or replacement in existing speaker systems. Small footprint for easy mounting in cabinets, enclosures, or custom builds. Practical use scenarios Home audio upgrade: Add Bluetooth playback and amplification to bookshelf or passive stereo speakers without replacing your amplifier. DIY speaker or hobby projects: Ideal for building portable Bluetooth speaker systems or custom stereo projects that require a compact, efficient amplifier board. Vehicle or mobile installations: Works with 12 V systems for RVs, boats, or car audio upgrades when used with the recommended 12 V–24 V adapter. What to expect in performance Clear, fidelity stereo sound suitable for music playback and general audio use. Reliable Bluetooth 5.0 connectivity with the stability and range advantages of the newer Bluetooth standard. Wide compatibility with a broad range of power supplies and speaker power ratings. Compatibility notes Use speakers rated between 10 W and 200 W and with 4 Ω or 8 Ω impedance. Use a regulated 12 V to 24 V DC power adapter for performance and to avoid damage to the board. Contents and support Digital amplifier board with Bluetooth 5.0 and 3.5 mm input. Standard connection points for power and speaker wiring. No external Bluetooth receiver required; simply pair a Bluetooth source or connect via 3.5 mm cable.