Model: BOLS-B5Interface: 3.5mm USBPlug and Play: Plug and PlayExternal Power Supply: External Power SupplyTransmission rate: 100 (Mbps)Effective working radius: 10 (m)Bluetooth standard: 3.0, othersWorking frequency: 2.4 (MHz)Colour: BlackBluetooth music receiverproduct manual:Speaker Bluetooth Receiver is a cost-effective Bluetooth stereo receiver that supports all mobile phones, computers and other digital products with Bluetooth capabilities for stereo wireless transmission.Features:1. Limited wireless, convert ordinary speakers into wireless bluetooth speakers2. Can be paired with Bluetooth speakers, IPD, Bluetooth computer3. Listen to music, watch movies, play games and enjoy the shocking effect4. Simple operation, change the limited world to wireless, everything is done by your masterTechnical Parameters:1. Power supply mode: built-in battery 200MA2. Bluetooth: Bluetooth 3.0+EDR specification3. Output mode: 3.5mm audio interface4. Receiving distance: 10m5. Standard accessories: USB charging cable6. Sound output sampling rate: 44.1KHZ and 48KHZ7. Support A2DP V1.2Instructions for use:1. Connect the 3.5mm audio cable to the speaker or car AUX audio port, turn on the power button, the lights flash alternately, enter the pairing mode, the phone searches for the Bluetooth name BOLS-B5, click on the connection, after the connection is successful, you can play the music in the phone or computer. Enjoy high quality music, secondary connection only wants to start the device will automatically connect.