X6 is compatible with laptops， MP3/4 devices， TF Card， or any audio device that is Bluetooth compatible. With the Bluetooth， it sends good interference-free performance， high data rate， high quality and efficiency， you can have up to 6 hours of playing time. The Microphone will allow you to make and receive Hands-free calls and listen to the other person loud through the Wireless Bluetooth Speaker. Description: Supports phone/ laptop/ Tablet PC Supports TF Card/ USB/ Audio Input/ FM radio function Modular buddy-jack design: connect a row of mini speakers to get audio performance Expanded bxs (Bass Expansion system) drives a fuller， richer low-end response New， larger 45mm driver delivers precise high for superb sound Built-in Microphone Bluetooth Function Handsfree Call Feature Built in Rechargeable Lithium Battery Audio Devices with 3.5mm Stereo Jack input Product Features: 1 : Bluetooth version : v3.0 + LDR 2 : Bluetooth transmission distance : 10 meters 3 : frequency response range : 100 HZ - 20 KHZ 4 : signal - to - noise ratio : 84 DB or higher 5 : sensitivity : 80 DB + 2DB 6 : the output power : 3W * 1 7 : distortion rate of II6 or less 8 : the Speaker specification : 4 �� 3 W 40 MM 9 : input power supply : DC DC5V500MAH 10 : working voltage : 3.0 T0 5.5 V 11 : playing time : 180 min 12 : Charging time : 120 min 3 Available Models:Default Bluetooth mode can long press the button to change the Bluetooth mode ------ radio mode ------ aux mode With the version of the update Voice prompts The tone will change Bluetooth mode ------ for phone or Bluetooth devices ( Bluetooth Connection ) radio ( FM )mode ------ radio ( Insert the USB cable as an antenna ) Short press the volume buttons to adjust the channel aux mode ------- for phone Computer TV Consoles 3.5mm audio output ( Using a USB cable ) Volume adjustment Please check the output volume for mobile phones You can long press the button to adjust the volume Product Function:Bluetooth FunctionFM Radio FunctionSupport TF Card Music，USB Flash Drive Music， Support MP3 FormatCompatible with Laptop/MP3/MP4 Player and ExternalOne speaker & one Bass diaphragmBuilt-In MicrophoneHands-Free Call Feature Package Content:1 x Bluetooth Portable Speaker 1 x USB Cable