This product is a DollaTek ZK-502M Bluetooth Digital Amplifier Module enhanced with an elegant wooden frame. AC/DC power supply unit (12VDC 2A) is also included. If the stereo speaker cones you already own are rated at 50W or less with an impedance of 4–8Ω, your speaker system can become Bluetooth-compatible simply by connecting the two wires on each side. You can enjoy music with your smart phone or tablet.
Electrical Specification of Bluetooth Digital Amplifier Module Unit Maker ：DollaTek Type： ZK-502MAudio Mini 2.0 Stereo 50W + 50W
