Specification: Origin: Mainland China Type: Voltage Regulator Condition: New Application: Speaker Model Number: TPA3110 Digital Audio Amplifier Board 15W+15W Audio input: Audio input Power output: 2*15W  Suitable impedance: 4~10 Ohm Size: 38*30*7mm/1.50*1.18*0.28in Weight: 8g Note: 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! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Digital Audio Amplifier Board 1. Wide Voltage Range: This tpa3110 digital audio amplifier board can work with a DC voltage range of 8-26V, featuring a polarity protection design that ensures stable and safe power input. 2. High-Powered Output: With a recommended power supply voltage of DC12V/2A, this stereo diy speaker amplifier provides powerful output for various audio applications, making it perfect for upgrading traditional speakers into Bluetooth-enabled wireless speakers. 3. Easy Installation: This product is easy to install and suitable for DIY enthusiasts who want to transform their traditional speakers into modern and versatile Bluetooth speakers. 4. Versatile Applications: This stereo diy speaker amplifier can be used for speaker box upgrades, background music systems, and other audio equipment modifications, providing flexibility and convenience for different audio needs. 5. Compact & Portable Design: Featuring a compact and portable design, car auto speaker can be easily carried and used in various locations, providing high-quality sound performance and convenience.