Bluetooth Speaker,I3C Wooden Bluetooth Speaker MP3 Player FM Radio 1. This wooden Bluetooth speaker can be connected to computer, smart phone or MP3. You can use it to transmit songs and enjoy your favorite music. 2. It can also be used as a FM radio. 3. You can answer the phone by pressing the button in the middle. 4.Operation time nearly 3 hours in all mod, including mp3/aux/phone mod. 5. It can be recharged with input power of DC 5V, 0 to full need nearly 3 hours.