TecBillion 3-in-1 Multifunction Bluetooth 3.0 Wireless Speaker, Total 6W Output Power with Enhanced Bass and Stereo Sound, Build in Microphone for Handfree Phone Call, Red 3-in-1 multifunction-This bluetooth speaker designed with two 3W loudspeakers, delivers up to 6 watts of High quality crystal clear sound, also as this is a Detachable wireless speaker, it can be separated independently work as speaker for computer, or Bluetooth receiver, or MP3 player Bluetooth 3.0+EDR ensure a stable connection within 10 meters(barrier-free), connect in seconds to any Bluetooth-enabled devices including: iPhone, iPad, iPod, Samsung, Kindle, Smartphones, Tablets. Support NFC function Built-in MIC for handsfree speakerphone phone calls from smartphones and iPhones, so you can conveniently pick up a call by this speaker in car, bathroom, cooking, or hiking etc High capacity rechargeable 1500 mAh battery for up to 6-8 hours of playtime Support TF card-it could automatically play the music with a stand alone Micro SD card. Can be connect external speakers to make it to be a bluetooth speaker