Features:100% brand new and high quality.Can be paired to any bluetooth enabled devices, such as mobile phone, laptops, speaker and Bluetooth audio transmitter.Make music in the audio equipment play by wirelessInstructions for use:receive the speaker into usb interface, and the other end connected through the 3.5mm audio cable to the receiver and the LINE-IN interface of speakersOpen the Bluetooth-enabled mobile phone (or computer), and search the surrounding Bluetooth devices to find a device called dmzmusic and then its' pairing code is 0000, after the pairing is successful, the led light will slow downThen you can select the music via Bluetooth from a cell phone or computer, a great music will play from speakerProduct Properties:Cabinet Material:PlasticInterface Type:USBCommunication:WirelessSupport APP:NoPlayback Function:MP3Wireless Type:BluetoothMaterial:PlasticBattery:NoSupport Apt-x:NoSupport Memory Card:NoSpecial Feature:Wireless,Portable,MiniSpecifications: Bluetooth Standard: Bluetooth V2.1+EDR, support A2DP V1.2Power supply: 5V USBOutput: 3.5mm Audio interfaceDistance: about 10mTransmission rate: 3MbpsShell Color: WhiteSize: 55*20*10mmNet Weight: 27gPackage Includes: 1 x USB Bluetooth Audio Music Receiver1 x 3.5mm Audio Cable Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.