Speaker WS-266,Mini bus speaker,FM&TF&USB speaker Function: 1.Can play your TF card card, U disk, MP3 format audio files.Do not need to switch, remember to read automatically.Enjoy mobile music and powerful multimedia music speaker, perfect listening to your mobile phone's music player, support MP3, MP4, notebook computer, PC, FM. 2. No consumption of mobile phone battery, rechargeable lithium batteries bring their own portable music device, is a professional mobile phone.Built-in rechargeable lithium battery can work 3 to 5 hours, charging time from 2 to 3 hours. Technology parameters: For / charging voltage: DC 5V The audio output interface: 3.5mm standard interface Body material: ABS Accessories: USB charging cable, audio cable, battery FM frequency range: 87.5-108MHz Expanding ring frequency: 150~18KHz (3dB) Speaker: 3W*2 Battery: 5C batteries Jack description function ANT: uses the FM insert audio line DC-5V: power charging interface LINE IN: audio input POWER: power switch Interface: Micro SD or U disk interface. Colors:Black,Blue,Green,Red Package includes 1*car speaker 1*audio & charger cable 1*battery 1*retail box