Features: Transform your old speakers into a modern, smart, and charming sound system! Compatible with: iPhone, iPad, Android smartphones and tablets, Mac and Windows laptops, NAS, etc. Stream music synchronously to different rooms (up to 8) with the same song or different songs, to play your favorite music throughout the house simultaneously. The M5 provides a stronger range signal than other standard Bluetooth-compatible speakers/adapters, allowing you to move further away as long as it's within the same Wi-Fi network. Offers more useful features such as a music alarm, sleep timer, etc. Easy installation lets you redefine your home music in minutes. Specifications: Power: DC5V 1000mA with Micro USB Analog Audio Interface: 3.5mm headphone audio output Size: 2.8x6.5cm/1.1x2.56inch Note: Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1 Set Audio Adapter