Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Type: Module _x005f_x000D_ Condition: New _x005f_x000D_ Working voltage: 3.7-5V DC _x005f_x000D_ Bluetooth-Compatible: 4.2 _x005f_x000D_ Power: 5W _x005f_x000D_ Supports USB sound card, no driver required, plug and play _x005f_x000D_ Transmission distance: 15 meters _x005f_x000D_ Size: 40*20*18mm/1.57x0.79x0.71inch (length*width*height) _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x Stereo Power Amplifier Board Module 1. Bluetooth-Compatible Wireless Connectivity: The CT14 Bluetooth-Compatible stereo power amplifier board module is equipped with a built-in Bluetooth-Compatible module, allowing easy wireless connection with smartphones, tablets, or other Bluetooth-Compatible devices. This enables users to conveniently transmit audio signals via Bluetooth-Compatible , eliminating the hassle of wired connections and providing a more liberated music experience. 2. High-Quality Sound: This digital power amplifier board utilizes high-quality digital audio processing chips and audio amplifiers, delivering excellent audio output. It supports high-resolution audio decoding, with low distortion, high signal-to-noise ratio, and a rich dynamic range, reproducing detailed, clear, and lifelike music and sound. 3. Multiple Audio Input Options: In addition to Bluetooth-Compatible connectivity, the CT14 Bluetooth-Compatible audio amplifier board usually features various audio input interfaces such as AUX (line-in), USB, and SD card. Users can choose different audio sources according to their needs and connect multiple audio devices simultaneously, offering greater flexibility and convenience. 4. Powerful Power Output: Despite its compact size, the CT14 Bluetooth-Compatible power amp board doesn't compromise on power output. It boasts an efficient power amplification circuit and speaker-driving capability, providing sufficient volume and dynamic range to meet the demands of users' audio systems. 5. Simple and User-Friendly Control Interface: The CT14 Bluetooth-Compatible digital audio amplifier module typically comes with intuitive control buttons and indicator lights, allowing easy adjustments of volume, play/pause, source switching, and more. Some models even include a remote control, enabling users to control their audio devices remotely.