Features:Easy To Operate: Simply connect your speaker with our device, immediately nsform your speakers into a able wirele Bluetooth speaker.Wirele Play: Removing troubles of wired connection, through the wirele connection and nsmiion ,enjoy a high fidelity music at any p indoor by wirele control.Perfectly Compatible: Our products can be compatible with nearly 95% of mobile phone or computer on the market. Support for iPhone and most kinds of smart phones.Portable design: with mini size ,the feature of portable can let you carry them to anywhere you want.Specifications:Bluetooth 4.0+EDRSupport A2DP V1.2Powered by 5V DCnsmiion rate:3(Mbps)nsmiion distance: about 10 mPower supply mode: USB-POWERUnit size: 55*20*10mmColor: Black/WhiteStep one:For No USB port Speakers: Supply power to the device by connecting charger with 5 V USB interface, then connect the Speaker's AUX port with the audio cable.For Speakers with USB port: Connect the device with speaker's USB port directly ,then then connect the Speaker's AUX port with the audio cable.Step two:Turn on the Bluetooth function of computer,mobile or other device which has Bluetooth function, searching for the H-163 device to connect and input: 0000 for matching when the device is in the matching mode. After matching succe ,the indicator light turn to twinkle slowly.Then you can use for iPhone and other bluetooth nsmitter playing the music.Package includes:1 x USB Bluetooth Audio Music Receiver1 x 3.5mm Audio CableNote: this product comes without retail boxes,We put in a safe pack