product description: BT01 Bluetooth receiver can receive is a mobile phone via Bluetooth and have a Bluetooth-enabled audio equipment of high-tech wireless products. Not only can make the music on your phone through this Bluetooth audio receiver in the car audio playback， also compatible with many audio it can also be used in home theater systems， listening to music， watching drama， cinema， how can. This is also a special Bluetooth Receiver for car audio， Bluetooth hands-free function and more， can be a key speakerphone， safe comfortable chat， do not worry about the call sound road safety. And by the choice of a mobile phone， the next song， the music player to adjust the volume on the Bluetooth audio receiver can also be the key play / pause， call back， a hands-free key. Embedded microphone with echo cancellation， only easily between music and call switching a button. Features:1， Bluetooth Music Receiver， receiving audio on the phone， delivered to the car stereo to play.2， Bluetooth hands-free， after the phone via a Bluetooth connection， an incoming call can touch speakerphone.3， to cable， the phone has an incoming call， the Bluetooth receiver can be reported out of a phone number.4， double back， twice quickly button on the receiver， you can call back the last number.5， two-way transmission， 3.5mm audio output plug can only be input audio through the audio output hole. Instructions for use:Charging: end using the supplied USB cable to the receiver's USB port， the other end of the power supply， the LED light turns red， indicating normal charging， after charging is completed， the red LED light goes out， a charge can be used 8 hour.Pairing: Press the switch button until the red and blue LED lights blink， then find Music And Talk on your cell phone or other Bluetooth. Click pairing the Bluetooth receiver LED turns blue and flashes slowly， indicating pairing is successful.Some devices require Enter a passcode， enter "0000." Once the pairing is successful， the next open automatically without the need to re-pair connection.If you want to use this Bluetooth music receiver is connected to a cell phone or other transmitter， you must re-pair. play music:Use 3.5mm plugs (audio can also output audio hole)， to connect to this Bluetooth receiver to your car or home theater audio input jack.Make sure that the transmission device (cell phone or other related equipment) is turned on and paired with a Bluetooth music receiver and the device within 10m range inAt this time playing music， the music will be transmitted via Bluetooth to a Bluetooth Music ReceiverNote: If you can not listen to music:Make sure your phone has been properly connected to the Bluetooth receiver， check to make sure your audio volume is not adjusted to the minimum or mute. Handsfree:When your phone using Bluetooth default microphone， you can through the built-MIC to cable and hands-free calls when the phone accessWhen the phone call， press a key to open receive voice calls， after the completion of the call， the phone automatically cut state before Difficult to solve:Establishing a connection is received on the basis of Bluetooth pairing on the disconnection may be due to the following reasons:Swordsman devices over a distance of 10 meters (33 feet)， or in the middle there are other obstacles (such as: walls， furniture， etc.)Bluetooth mobile phone or a receiver are closed out， it could be a receiver Low battery automatic shutdown.No connection within the specified time， the device is in sleep mode or turned off， need to follow these steps:1， restart the Bluetooth receiver and transmitter2， reconnect， pairing