<p>Wireless version: 5.3</p> <p>Battery capacity: 180 mA</p> <p>Working range: open area up to 10 meters,without any obstaclese</p> <p>About charging: charging red light flash,Fully red light off</p> <p>Free switching: transmitter mode red light receiver mode blue light flash</p> <p>How To Use:</p> <p>Receiver Mode:</p> <p>1. Long the power button for 3 seconds to turn on;</p> <p>2. Change the mode key to position RX,blue light flash;</p> <p>3. Find D58 in the wireless search of your phone and chose to pair,blue light stop flash.</p> <p>Transmitter Mode:</p> <p>1. Long the power button for 3 seconds to turn on;</p> <p>2. Change the mode key to position TX,red light flash;</p> <p>3. Turn on the receiving device that needs to be paired and enter the bluetooth pairing state,the decice automatically connect,red light stop flash.</p> <p>Common Faults: No sound under receiver mode: Make sure the mobiles' wireless has been connected;The speaker has been entered into AUX mode.</p> <p>Cannot connect under transmitter mode:</p> <p>1. Make sure the device has been on transmitter mode (red light flash);</p> <p>2. Wireless headset and speaker cannot be connected with the other device such as your phone;</p> <p>3. Part of the wireless headsets need to initialize.</p> <p>Colour:Black</p> <p>Material:Plastic</p> <p>Package Contents:</p> <p>1 * audio receiver</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>