Feature: 1. Compatibility: Supports for DLNA for UPnP music play and a wide range of online music services including for Tuneln Radio, for Spotify, for DEEZER and more. APP also with lots of online music library for searching and play. Compatible with for IOS for Android smart phones and tablets, for Mac laptops, etc. 2. Function: This is a small device connected with your speakers for streaming HiFi music through wireless fidelity. You can stream HD sound wirelessly from your smartphone or tablets, for IOS tablet, or PC to your no wireless fidelity HiFi system, transform your old speakers into a smart sound system. 3. Multi Room Music Wireless Transfer: It lets you to stream music synchronously to different rooms (up to 8) for the same song or different songs, play your favourite music in the whole house at the same time. 4. Easy to Use: You can control all speakers and music played on one smartphone with for AudioCast app, for example, streaming the same song to all speakers or different music to multi speakers. 5. Strong Signal: It provides a stronger range signal than other normal Bluetooth speaker or adapters. Users need to stay within range of the Bluetooth, however with it, you can walk away a far distance as long as it is within the same wireless fidelity network. Besides, it offers more useful functions like music alarm, sleeping timer, etc. Specification: Item Type: HiFi Music Receiver Material: ABS Wireless Technology: IEEE 802.11 b g n Working Range: Approx. 50m / 164ft Sound Output: AUX 3.5mm Working Voltage: 5V 1A Platform Support: for Android 4.0 and above, for iOS 7 and above, for OS X 10.9 and above. Package List: 1 x HiFi Music Receiver 1 x Sound Cable 1 x USB Power Cord 2 x User Manual