Specifications *Color: As Pictures Show *Bluetooth: 4.1+EDR *Transmission distance: 10m *Frequency: 2.4GHz *Stereo input plug: 3.5mm *Charging: by mini USB cable *Working time: up to 8 hours Features Supports one key to switch between music state and call state Supports TF card playback function (TF card not included) With embedded echo cancellation microphone to provide you clear sound With sleep mode, energy saving Easy to use How to operate Step 1: When turn on, if the Bluetooth receiver indicator (blue-red) light is flashing, it means that the Bluetooth receive is ready to pair. Step 2: The Bluetooth receiver is connected to the speaker via a 3.5mm audio cable. Step 3: Open the Bluetooth settings on your smartphone, search for "X6", and click to start pairing, when successfully pair, the Bluetooth indicator will light up (blue) Package Contents 1*Bluetooth Receiver 1*USB Cable 1*3.5 Audio Adapter 1*User Manual Notes The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.