Three Play Modes to Choose 1.Bluetooth Mode - Support almost all Bluetooth-enabled mobile devices. If there is a call coming in when Bluetooth mode is on, it will automatically switch to " Call Mode" for hands-free calls with the built-in MIC. 2.Line IN Mode - You can enjoy music from the devices connected to the sound bar by an audio cable.(AUX/RCA) 3.TF Card Mode - Plays music files in the TF Card Port. EWEMOSI Sound Bar Specifications Bluetooth Version: Bluetooth 4.0 Impedance: 4 Ohm Power Supply: DC 5V 1A Output: 2 x 5W Frequency Response: 100Hz~18KHz Transfer Distance: 10M Charging Time: About 3~4 hours Working Time: About 4-5 hours Unit Size: 40mm x 2 Battery: 3.7V 2000mAh Dimensions: 15.75*2.17*2.36 inch Package Include Bluetooth Sound Bar Remote Control USB Cable 3.5mm Audio Cable RCA Cable User Manual Kindly Note 1.Your TV should support analog output when it is connected with the TV speaker via AUX/RCA cable, otherwise you need an audio switcher. If your TV support the coaxial or optical output only, you need a audio connector to switch the signal. 2.The sound bar will automatically switch to " Sleep Mode" to save power when it has stopped working for one hour, and it seems that it is turned off, you need to wake it again. 3.When the LED light is off, may be power off and you need to charge it before you use.