Features: Transform your old speakers into a modern, for smart charming sound system! for: for i Phone, i Pad and roid for smart phones and tablets, for Mac and for laptops with Windows, NAS, etc. Allows you to stream music synchronously to different rooms (up to 8) for the same song or different songs, to play your favorite music throughout the house at the same time. M5 provides a for stronger range signal than other common Bluetooth-compatible speakers/adapter, you can go far away as long as it is within the same Wi-Fi network. Offers more useful functions such as music alarm, sleep timer, etc. And easy installation, within minutes you can redefine your home music. 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. pls 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